CN103007909A - Recycling method of organic bentonite for organic wastewater treatment - Google Patents
Recycling method of organic bentonite for organic wastewater treatment Download PDFInfo
- Publication number
- CN103007909A CN103007909A CN2012105448250A CN201210544825A CN103007909A CN 103007909 A CN103007909 A CN 103007909A CN 2012105448250 A CN2012105448250 A CN 2012105448250A CN 201210544825 A CN201210544825 A CN 201210544825A CN 103007909 A CN103007909 A CN 103007909A
- Authority
- CN
- China
- Prior art keywords
- bentonite
- organic
- toluene
- electrolysis
- electrolytic cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000278 bentonite Inorganic materials 0.000 title claims abstract description 67
- 239000000440 bentonite Substances 0.000 title claims abstract description 67
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 9
- 238000004064 recycling Methods 0.000 title claims abstract description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 132
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 32
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 17
- 239000011780 sodium chloride Substances 0.000 claims abstract description 16
- 239000005416 organic matter Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 6
- 238000001556 precipitation Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000002244 precipitate Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 239000004094 surface-active agent Substances 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 125000002091 cationic group Chemical group 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229910052901 montmorillonite Inorganic materials 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- JBIJLHTVPXGSAM-UHFFFAOYSA-N 2-naphthylamine Chemical compound C1=CC=CC2=CC(N)=CC=C21 JBIJLHTVPXGSAM-UHFFFAOYSA-N 0.000 description 1
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 description 1
- ZPTVNYMJQHSSEA-UHFFFAOYSA-N 4-nitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1 ZPTVNYMJQHSSEA-UHFFFAOYSA-N 0.000 description 1
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical group [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- -1 aluminum (magnesium) oxygen (oxygen) Chemical compound 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 150000002892 organic cations Chemical class 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
本发明公开一种用于有机废水处理的有机膨润土回收利用的方法，将吸附有有机污染物的废弃有机膨润土置入直流电解槽中，加入甲苯，甲苯和废弃有机膨润土的质量比为1：0.1~1：0.8，再加入浓度为10~20g/L的氯化钠溶液，氯化钠溶液的量为甲苯的量的十分之一至二十分之一；将电解槽两极通直流电，电位梯度为0.5~1V/cm，电解5~8h，电解时对电解槽中的混合物加以150~200转/分转速的搅拌，电解完成后沉淀分离，得到膨润土固体；将分离膨润土固体后得到的液体蒸馏、冷凝，得到甲苯和其他有机物；将有机膨润土通过电极作用，得到可以重复使用的膨润土，减少了废水处理投资和由吸附产生的二次污染。 The invention discloses a method for recycling organic bentonite used for organic wastewater treatment. The waste organic bentonite adsorbed with organic pollutants is put into a direct current electrolytic cell, and toluene is added. The mass ratio of toluene and waste organic bentonite is 1:0.1 ~1:0.8, then add sodium chloride solution with a concentration of 10~20g/L, the amount of sodium chloride solution is one-tenth to one-twentieth of the amount of toluene; The gradient is 0.5~1V/cm, and the electrolysis is 5~8h. During the electrolysis, the mixture in the electrolytic cell is stirred at a speed of 150~200 rpm. After the electrolysis is completed, the precipitate is separated to obtain the bentonite solid; the liquid obtained after the separation of the bentonite solid is Distill and condense to obtain toluene and other organic matter; pass the organic bentonite through the electrode action to obtain bentonite that can be reused, which reduces the investment in wastewater treatment and the secondary pollution caused by adsorption.
Description
技术领域 technical field
本发明涉及环境保护材料开发技术，尤其涉及一种有机膨润土回收利用的方法。 The invention relates to the development technology of environmental protection materials, in particular to a method for recycling organic bentonite.
背景技术 Background technique
膨润土是一种以蒙脱石为主要矿物组成的粘土岩，是应用最为广泛的非金属矿产之一。蒙脱石的结构特征为一种含水的层状铝硅酸盐矿物，由两个硅氧四面体中间夹一个铝（镁）氧（氢氧）八面体组成，属于2:1型的三层粘土矿物。晶层间的距离为0.96～2.14nm，这些纳米片层层叠在一起，形成几百纳米到几微米的粘土颗粒，在膨润土层间有可以交换的阳离子。 Bentonite is a clay rock mainly composed of montmorillonite, and it is one of the most widely used non-metallic minerals. The structural feature of montmorillonite is a hydrous layered aluminosilicate mineral, which is composed of two silicon-oxygen tetrahedrons sandwiching an aluminum (magnesium) oxygen (oxygen) octahedron, belonging to the 2:1 type three-layer Clay minerals. The distance between the crystal layers is 0.96-2.14nm. These nano-sheets are stacked together to form clay particles of several hundred nanometers to several microns, and there are exchangeable cations between the bentonite layers.
有机膨润土是用有机阳离子（有机铵盐、季铵盐等）取代蒙脱石中的层间可交换阳离子，从而使膨润土由亲水疏油性改为亲油疏水性的有机膨润土。有机膨润土在废水处理中主要作为吸附剂，去除水中有机污染物的效果非常好，如用十六烷基三甲基溴化铵改性的膨润土吸附处理水中α-、β-萘胺，α-萘酚，其去除率均大于95%。研究表明有机膨润土吸附有机污染物如多环芳烃、染料、农药等污染物的性能与活性炭相当，但膨润土在废水处理时的缺陷是：废水中固-液分离困难、回收利用难，导致在污染控制中的应用基本停留在实验室研究阶段，严重制约其大规模推广应用。 Organobentonite is an organic bentonite that replaces the interlayer exchangeable cations in montmorillonite with organic cations (organic ammonium salts, quaternary ammonium salts, etc.), so that the bentonite changes from hydrophilic and oleophobic to oleophilic and hydrophobic. Organic bentonite is mainly used as an adsorbent in wastewater treatment, and the effect of removing organic pollutants in water is very good. For example, bentonite modified with cetyltrimethylammonium bromide absorbs α-, β-naphthylamine, α- Naphthol, its removal rate is greater than 95%. Studies have shown that the performance of organobentonite in adsorbing organic pollutants such as polycyclic aromatic hydrocarbons, dyes, pesticides and other pollutants is equivalent to that of activated carbon. The application in control basically stays in the stage of laboratory research, which seriously restricts its large-scale promotion and application.
发明内容 Contents of the invention
本发明为克服现有技术的不足，提供了一种有机膨润土回收利用的方法，用该方法可以解决有机膨润土吸附处理有机废水后污染物转移的问题，并重复利用膨润土。 In order to overcome the deficiencies of the prior art, the invention provides a method for recycling organic bentonite. The method can solve the problem of pollutant transfer after organic waste water is adsorbed and treated by organic bentonite, and the bentonite can be reused.
本发明采用的技术方案是： The technical scheme adopted in the present invention is:
1）将吸附有有机污染物的废弃有机膨润土置入直流电解槽中，加入甲苯，甲苯和废弃有机膨润土的质量比为1：0.1~1：0.8，再加入浓度为10~20g/L的氯化钠溶液，氯化钠溶液的量为甲苯的量的十分之一至二十分之一； 1) Put the waste organic bentonite adsorbed with organic pollutants into a DC electrolytic cell, add toluene, the mass ratio of toluene and waste organic bentonite is 1:0.1~1:0.8, and then add chlorine with a concentration of 10~20g/L Sodium chloride solution, the amount of sodium chloride solution is 1/10 to 1/20 of the amount of toluene;
2）将电解槽两极通直流电，电位梯度为0.5~1V/cm，电解5~8 h，电解时对电解槽中的混合物加以150~200 转/分转速的搅拌，电解完成后沉淀分离，得到膨润土固体； 2) Connect the two poles of the electrolytic cell with direct current, the potential gradient is 0.5~1V/cm, and electrolyze for 5~8 hours. During the electrolysis, the mixture in the electrolytic cell is stirred at a speed of 150~200 rpm. After the electrolysis is completed, the precipitation is separated, and the obtained bentonite solid;
3）将分离膨润土固体后得到的液体蒸馏、冷凝，得到甲苯和其他有机物，甲苯继续用于有机膨润土回收。 3) Distill and condense the liquid obtained after separating the bentonite solids to obtain toluene and other organic matter, and the toluene will continue to be used for the recovery of organic bentonite.
本发明的有益效果是： The beneficial effects of the present invention are:
（1）将有机膨润土通过电极作用，得到可以重复使用的膨润土，减少了废水处理投资和由吸附产生的二次污染。 (1) The bentonite that can be reused is obtained by using the organic bentonite through the electrode action, which reduces the investment in wastewater treatment and the secondary pollution caused by adsorption.
（2）该过程简单，能耗低，所用的甲苯可以重复使用。 (2) The process is simple, the energy consumption is low, and the used toluene can be reused.
（3）能将被吸附的有机物分离，如该有机物有经济价值，还可以产生经济效益。 (3) It can separate the adsorbed organic matter, if the organic matter has economic value, it can also generate economic benefits.
具体实施方式 Detailed ways
将吸附有有机污染物的废弃有机膨润土置入直流电解槽中，加入甲苯，甲苯和废弃有机膨润土的质量比为1：0.1~1：0.8，再加入少量浓度为10~20g/L的氯化钠溶液，氯化钠溶液的量为甲苯的量的十分之一至二十分之一，将电解槽两极通直流电，电位梯度为0.5~1V/cm，电解5~8 h，电解时对电解槽中的混合物加以150~200 转/分转速的搅拌，电解完成后，停止搅拌，沉淀分离，在该过程中，有机物和表面活性剂在电场的驱动作用和有机溶液的分配作用下，而进入甲苯有机相中，膨润土中阳离子位由氯化钠溶液中的钠所取代，得到膨润土固体。2）将分离膨润土固体后得到有液体，经过蒸馏、冷凝，可以分离得到甲苯和其他有机物，其中甲苯可以继续用于有机膨润土回收，分离甲苯后的溶液中得到的表面活性剂经过处理后可以继续用于合成有机膨润土。 Put the waste organic bentonite adsorbed with organic pollutants into a direct current electrolytic cell, add toluene, the mass ratio of toluene and waste organic bentonite is 1:0.1~1:0.8, and then add a small amount of chloride with a concentration of 10~20g/L Sodium solution, the amount of sodium chloride solution is one-tenth to one-twentieth of the amount of toluene, direct current is applied to the two poles of the electrolytic cell, the potential gradient is 0.5-1V/cm, and the electrolysis is 5-8 h. The mixture in the electrolytic cell is stirred at a speed of 150~200 rpm. After the electrolysis is completed, the stirring is stopped and the precipitation is separated. During this process, the organic matter and the surfactant are driven by the electric field and the distribution of the organic solution. Entering the organic phase of toluene, the cationic position in the bentonite is replaced by sodium in the sodium chloride solution to obtain the bentonite solid. 2) The liquid obtained after separating the bentonite solids, after distillation and condensation, can be separated to obtain toluene and other organic matter, among which toluene can continue to be used for the recovery of organic bentonite, and the surfactant obtained in the solution after separation of toluene can continue to be processed For the synthesis of organic bentonite.
下面通过3个实施例进一步说明本发明： Further illustrate the present invention below by 3 embodiments:
实施例1 Example 1
将吸附有苯酚的有机膨润土置入直流电解槽中，加入甲苯，甲苯和废弃有机膨润土的质量比为1：0.8，加入少量浓度为20g/L的氯化钠溶液，氯化钠溶液的量为甲苯的量的二十分之一，将电解槽两极通直流电，电位梯度为1V/cm，电解8 h，电解时对电解槽中的混合物加以200 转/分转速的搅拌，电解完成后，停止搅拌，沉淀分离，在该过程中，有机物和表面活性剂在电场的驱动作用和有机溶液的分配作用下，而进入甲苯有机相中，膨润土中阳离子位由氯化钠溶液中的钠所取代，得到膨润土固体；将分离膨润土后得到有液体，经蒸馏、冷凝，可以分离得到甲苯和其他有机物，其中甲苯可以继续用于有机膨润土回用，分离甲苯后的溶液中得到的表面活性剂经过处理后可以继续用于合成有机膨润土。 Put the organic bentonite adsorbed with phenol into a DC electrolytic cell, add toluene, the mass ratio of toluene and waste organic bentonite is 1:0.8, add a small amount of sodium chloride solution with a concentration of 20g/L, the amount of sodium chloride solution is One-twentieth of the amount of toluene, connect the two poles of the electrolytic cell with direct current, the potential gradient is 1V/cm, and electrolyze for 8 hours. During electrolysis, the mixture in the electrolytic cell is stirred at a speed of 200 rpm. After the electrolysis is completed, stop Stirring, precipitation and separation, in this process, the organic matter and surfactant enter the toluene organic phase under the driving action of the electric field and the distribution of the organic solution, and the cationic position in the bentonite is replaced by sodium in the sodium chloride solution, Obtain bentonite solid; the liquid obtained after separating bentonite, after distillation and condensation, can be separated to obtain toluene and other organic matter, wherein toluene can continue to be used for reuse of organic bentonite, and the surfactant obtained in the solution after separating toluene is processed Can continue to be used in the synthesis of organic bentonite.
分析得到的膨润土中有机碳含量，含碳量仅为0.5%。膨润土再和得到的表面活性剂混合，加入适量水搅拌3h后，沉淀分离，烘干制得有机膨润土，经分析，含碳量为19.2%，可以继续用于有机废水处理。 The organic carbon content in the bentonite obtained from the analysis shows that the carbon content is only 0.5%. The bentonite was mixed with the obtained surfactant, added an appropriate amount of water and stirred for 3 hours, precipitated and separated, and dried to obtain organic bentonite. After analysis, the carbon content was 19.2%, and it could continue to be used for organic wastewater treatment.
实施例2 Example 2
将吸附有硝基苯酚的有机膨润土置入直流电解槽中，加入甲苯，甲苯和废弃有机膨润土的质量比为1：0.1，加入少量浓度为10g/L的氯化钠溶液，氯化钠溶液的量为甲苯的量的十分之一~二十分之一，将电解槽两极通直流电，电位梯度为0.5V/cm，电解5 h，电解时对电解槽中的混合物加以150 转/分转速的搅拌，电解完成后，停止搅拌，沉淀分离，在该过程中，有机物和表面活性剂在电场的驱动作用和有机溶液的分配作用下，而进入甲苯有机相中，膨润土中阳离子位由氯化钠溶液中的钠所取代，得到膨润土固体；将分离膨润土后得到有液体，经蒸馏、冷凝，可以分离得到甲苯和其他有机物，其中甲苯可以继续用于有机膨润土回用，分离甲苯后的溶液中得到的表面活性剂经过处理后可以继续用于合成有机膨润土。 Put the organic bentonite adsorbed with nitrophenol into a DC electrolytic cell, add toluene, the mass ratio of toluene and waste organic bentonite is 1:0.1, add a small amount of sodium chloride solution with a concentration of 10g/L, and the sodium chloride solution The amount is one-tenth to one-twentieth of the amount of toluene, direct current is applied to the two poles of the electrolytic cell, the potential gradient is 0.5V/cm, and the electrolysis is carried out for 5 hours. During electrolysis, the mixture in the electrolytic cell is subjected to 150 rpm After the electrolysis is completed, the stirring is stopped and the precipitation is separated. During this process, the organic matter and surfactant enter the toluene organic phase under the driving action of the electric field and the distribution of the organic solution, and the cationic position in the bentonite is chlorinated The sodium in the sodium solution is replaced to obtain the bentonite solid; the liquid obtained after the separation of the bentonite is distilled and condensed to obtain toluene and other organic substances, among which toluene can continue to be used for the reuse of organic bentonite and the solution after separation of toluene The obtained surfactant can continue to be used in the synthesis of organobentonite after being treated.
分析得到的膨润土中有机碳含量，含碳量仅为0.7%。膨润土再和得到的表面活性剂混合，加入适量水搅拌3h后，沉淀分离，烘干制得有机膨润土，经分析，含碳量为16.8%，可以继续用于有机废水处理。 The organic carbon content in the bentonite obtained from the analysis shows that the carbon content is only 0.7%. The bentonite was mixed with the obtained surfactant, added an appropriate amount of water and stirred for 3 hours, precipitated and separated, and dried to obtain organic bentonite. After analysis, the carbon content was 16.8%, and it could continue to be used for organic wastewater treatment.
实施例3 Example 3
将吸附有对硝基甲苯的有机膨润土置入直流电解槽中，加入甲苯，甲苯和废弃有机膨润土的质量比为1：0.6，加入少量浓度为15g/L的氯化钠溶液，氯化钠溶液的量为甲苯的量的十五分之一，将电解槽两极通直流电，电位梯度为1V/cm，电解6 h，电解时对电解槽中的混合物加以180 转/分转速的搅拌，电解完成后，停止搅拌，沉淀分离，在该过程中，有机物和表面活性剂在电场的驱动作用和有机溶液的分配作用下，而进入甲苯有机相中，膨润土中阳离子位由氯化钠溶液中的钠所取代，得到膨润土固体；将分离膨润土后得到有液体，经蒸馏、冷凝，可以分离得到甲苯和其他有机物，其中甲苯可以继续用于有机膨润土回用，分离甲苯后的溶液中得到的表面活性剂经过处理后可以继续用于合成有机膨润土。 Put the organic bentonite adsorbed with p-nitrotoluene into a DC electrolytic cell, add toluene, the mass ratio of toluene and waste organic bentonite is 1:0.6, add a small amount of sodium chloride solution with a concentration of 15g/L, sodium chloride solution The amount of toluene is one-fifteenth of the amount of toluene, direct current is applied to the two poles of the electrolytic cell, the potential gradient is 1V/cm, and the electrolysis takes 6 h. During electrolysis, the mixture in the electrolytic cell is stirred at a speed of 180 rpm, and the electrolysis is completed Finally, stop stirring, and precipitate and separate. In this process, the organic matter and surfactant enter the toluene organic phase under the driving action of the electric field and the distribution of the organic solution, and the cationic position in the bentonite is formed by the sodium in the sodium chloride solution. Substituted to obtain bentonite solid; the liquid obtained after separating bentonite, after distillation and condensation, can be separated to obtain toluene and other organic matter, wherein toluene can continue to be used for reuse of organic bentonite, and the surfactant obtained in the solution after separating toluene After treatment, it can continue to be used to synthesize organic bentonite.
分析得到的膨润土中有机碳含量，含碳量仅为0.9%。膨润土再和得到的表面活性剂混合，加入适量水搅拌3h后，沉淀分离，烘干制得有机膨润土，经分析，含碳量为21.5%，可以继续用于有机废水处理。 The organic carbon content in the bentonite obtained from the analysis shows that the carbon content is only 0.9%. The bentonite was mixed with the obtained surfactant, added an appropriate amount of water and stirred for 3 hours, precipitated and separated, and dried to obtain organic bentonite. After analysis, the carbon content was 21.5%, and it could continue to be used for organic wastewater treatment.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544825.0A CN103007909B (en) | 2012-12-17 | 2012-12-17 | Recycling method of organic bentonite for organic wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544825.0A CN103007909B (en) | 2012-12-17 | 2012-12-17 | Recycling method of organic bentonite for organic wastewater treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103007909A true CN103007909A (en) | 2013-04-03 |
| CN103007909B CN103007909B (en) | 2014-08-13 |
Family
ID=47957341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210544825.0A Expired - Fee Related CN103007909B (en) | 2012-12-17 | 2012-12-17 | Recycling method of organic bentonite for organic wastewater treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103007909B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368917A (en) * | 2019-07-16 | 2019-10-25 | 常州大学 | A kind of method and its application preparing efficient absorption material with paraffin oil decolorization roach |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565719A (en) * | 2003-06-30 | 2005-01-19 | 中国石油化工股份有限公司 | Method for reacting poisoned sorbent |
| CN101113045A (en) * | 2007-06-22 | 2008-01-30 | 浙江大学 | A method for treating wastewater containing aromatic nitro compounds |
| US20090312176A1 (en) * | 2008-06-11 | 2009-12-17 | John Aibangbee Osaheni | Methods and system for regeneration of adsorbent material |
| JP2011053155A (en) * | 2009-09-03 | 2011-03-17 | Toshiba Corp | Device and method for electroextraction |
| CN102367182A (en) * | 2011-10-11 | 2012-03-07 | 厦门紫金矿冶技术有限公司 | Method for treating waste water with organic modified bentonite |
-
2012
- 2012-12-17 CN CN201210544825.0A patent/CN103007909B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565719A (en) * | 2003-06-30 | 2005-01-19 | 中国石油化工股份有限公司 | Method for reacting poisoned sorbent |
| CN101113045A (en) * | 2007-06-22 | 2008-01-30 | 浙江大学 | A method for treating wastewater containing aromatic nitro compounds |
| US20090312176A1 (en) * | 2008-06-11 | 2009-12-17 | John Aibangbee Osaheni | Methods and system for regeneration of adsorbent material |
| JP2011053155A (en) * | 2009-09-03 | 2011-03-17 | Toshiba Corp | Device and method for electroextraction |
| CN102367182A (en) * | 2011-10-11 | 2012-03-07 | 厦门紫金矿冶技术有限公司 | Method for treating waste water with organic modified bentonite |
Non-Patent Citations (4)
| Title |
|---|
| 上官中华等: "改性膨润土处理含甲苯废水的实验研究", 《技术与创新管理》, vol. 29, no. 6, 30 November 2008 (2008-11-30) * |
| 绕韦勋等: "有机改性膨润土吸附水中有机污染物的性能研究", 《环境》, no. 07, 5 July 2007 (2007-07-05) * |
| 骆广生等: "溶剂萃取与电泳技术的耦合—电泳萃取技术", 《化工进展》, no. 2, 25 March 1996 (1996-03-25) * |
| 骆广生等: "萃取-电泳萃取复合过程用于回收染料", 《化学工程》, vol. 28, no. 5, 10 October 2000 (2000-10-10) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368917A (en) * | 2019-07-16 | 2019-10-25 | 常州大学 | A kind of method and its application preparing efficient absorption material with paraffin oil decolorization roach |
| CN110368917B (en) * | 2019-07-16 | 2022-04-26 | 常州大学 | A method for preparing high-efficiency adsorption material from paraffin oil decolorized waste soil and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103007909B (en) | 2014-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105016530B (en) | A kind of comprehensive processing technique of highly concentrated high-salt wastewater | |
| CN103183403B (en) | Antibiotic pharmaceutical wastewater processing method and device | |
| CN103274509A (en) | Preparation method of composite flocculant capable of adsorbing heavy metal ions and composite flocculant product through | |
| CN104129831A (en) | Method for simultaneous removal and recovery of heavy metal ions and organic acid by using chelating resin | |
| CN103508421A (en) | Method for recycling iodine from production waste liquid of X-CT series contrast agents | |
| CN103464123A (en) | Preparation method of CTMAB/CPAM/bentonite compound intercalation materials | |
| Choi | Effect of Mg-sericite flocculant for treatment of brewery wastewater | |
| CN108218038A (en) | A method for resin adsorption-desorption-diffusion dialysis treatment of heavy metal-containing wastewater | |
| CN103113009B (en) | Recycled oily sludge recovery treatment washing liquid and treatment method | |
| Herawati et al. | Removal of total dissolved solids from oil-field-produced water using ceramic adsorbents integrated with reverse osmosis | |
| Zhang et al. | The removal characteristics and mechanisms of polystyrene microplastics with various induced photoaging degrees by CuFe2O4 | |
| Zhu et al. | Removal of fluorine from water by the aluminum-modified montmorillonite | |
| CN1843951A (en) | A kind of treatment method of printing and dyeing/dye wastewater | |
| Burakov et al. | New carbon nanomaterials for water purification from heavy metals | |
| CN102976517A (en) | Method for treating industrial pickling wastewater | |
| CN102963952A (en) | Method for treating oily wastewater | |
| CN103007909B (en) | Recycling method of organic bentonite for organic wastewater treatment | |
| CN111330536A (en) | Preparation and use methods of anion and cation compound modified activated ore for repairing and treating heavy metal polluted site wastewater | |
| CN101486524A (en) | Comprehensive processing method for furfural production wastewater | |
| Zhou et al. | A novel ion exchange-electrodialysis hybrid system to treat rare-earth oxalic precipitation mother liquid: Contamination reduction, efficient Y3+ recovery, and acid separation | |
| CN101863576B (en) | Processing method of tertiary oil recovery produced water containing polyacrylamide | |
| CN102895941B (en) | Method for synthesizing iron-aluminum modified bentonite | |
| CN102553547A (en) | Potassium-based rectorite water treatment material and preparation method thereof | |
| CN107473319B (en) | A method for phase transition regulation and recovery of cationic heavy metals in water | |
| CN107381705B (en) | A method for phase-change regulation, separation and recovery of various cationic heavy metals in water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 213016 Baiyun District, Changzhou, Jiangsu Patentee after: Changzhou University Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: Changzhou University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210114 Address after: No. 159, Chengjiang Middle Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Jiangyin Intellectual Property Operation Co.,Ltd. Address before: 213016 Baiyun Road, bell tower area, Changzhou, Jiangsu Patentee before: CHANGZHOU University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220915 Address after: No. 118, Xiji Avenue, Nanyue Village, Xinjie Street, Yixing City, Wuxi City, Jiangsu Province, 214200 Patentee after: Wuxi Wisdom Xingyi Information Technology Co.,Ltd. Address before: No. 159, Chengjiang Middle Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: Jiangyin Intellectual Property Operation Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 |