CN106830621A - A kind of composite sludge dehydration agent and its preparation method and application - Google Patents
A kind of composite sludge dehydration agent and its preparation method and application Download PDFInfo
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- 239000010802 sludge Substances 0.000 title claims abstract description 88
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 230000018044 dehydration Effects 0.000 title abstract description 8
- 238000006297 dehydration reaction Methods 0.000 title abstract description 8
- 239000012024 dehydrating agents Substances 0.000 claims abstract description 10
- 229920000620 organic polymer Polymers 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006227 byproduct Substances 0.000 claims abstract description 9
- 239000002861 polymer material Substances 0.000 claims abstract description 9
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 8
- 239000002734 clay mineral Substances 0.000 claims abstract description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 8
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 8
- 235000021317 phosphate Nutrition 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000010865 sewage Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 239000010881 fly ash Substances 0.000 claims description 10
- 229920002401 polyacrylamide Polymers 0.000 claims description 8
- 125000002091 cationic group Chemical group 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 239000004113 Sepiolite Substances 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 4
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 4
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 4
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 4
- 229910052624 sepiolite Inorganic materials 0.000 claims description 4
- 235000019355 sepiolite Nutrition 0.000 claims description 4
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 4
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 3
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 3
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 3
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002426 superphosphate Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
本发明公开了一种复合污泥脱水剂的制备及其应用,该复合污泥脱水剂主要由以下重量份的原料所制成:有机高分子材料2‑5份、黏土矿物10‑15份、磷酸盐类30‑45份、金属氧化物25‑35份、工业副产品5‑10份。本发明的复合污泥脱水剂能有效降低污泥的含水率,并且用量少,效果快,经处理后的污泥含水率可降至40%‑45%,降低污泥体积;同时本发明中复合脱水剂制备方法简单、材料易得,成本低廉,污泥脱水效果稳定,对环境影响小,在污泥处理方面具有良好的市场前景。The invention discloses a preparation and application of a composite sludge dewatering agent. The composite sludge dewatering agent is mainly made of the following raw materials in parts by weight: 2-5 parts of organic polymer materials, 10-15 parts of clay minerals, 30-45 parts of phosphates, 25-35 parts of metal oxides, 5-10 parts of industrial by-products. The composite sludge dewatering agent of the present invention can effectively reduce the water content of the sludge, and the dosage is small, the effect is fast, the water content of the treated sludge can be reduced to 40%-45%, and the volume of the sludge is reduced; at the same time, the present invention The compound dehydrating agent has simple preparation method, easy-to-obtain materials, low cost, stable sludge dehydration effect, little impact on the environment, and has good market prospects in sludge treatment.
Description
技术领域technical field
本发明属于污泥处理领域,具体涉及一种复合污泥脱水剂的制备及其应用。The invention belongs to the field of sludge treatment, and in particular relates to the preparation and application of a composite sludge dewatering agent.
背景技术Background technique
污泥是指污水处理过程中所产生的固态、半固态及液态的废弃物,其成分复杂,是由污水中的悬浮物、微生物、微生物所吸附的有机物以及微生物代谢活动产物所形成的聚集体。。随着工业的发展和城市化进程的加快以及国内污水处理事业的发展,城市污泥是城市污水处理厂不可避免的产物,污水厂总处理水量和处理程度将不断扩大和提高,产生的污泥量也日益增加。据估算,目前中国城市污水处理厂污泥年产量已超过3000万吨。污泥处理处置是解决城市水污染问题非常重要的一个系统,污泥处理处置是污水处理得以最终实施的保障,在经济发达国家,污泥处置时极其重要的环节,其投资占污水处理厂总投资的50%-70%。Sludge refers to the solid, semi-solid and liquid waste produced in the process of sewage treatment. Its composition is complex, and it is an aggregate formed by suspended solids in sewage, microorganisms, organic substances adsorbed by microorganisms, and products of microbial metabolic activities. . . With the development of industry, the acceleration of urbanization and the development of domestic sewage treatment business, urban sludge is an inevitable product of urban sewage treatment plants. The total water treatment volume and treatment degree of sewage plants will continue to expand and improve. volume is also increasing. It is estimated that the annual sludge output of China's urban sewage treatment plants has exceeded 30 million tons. Sludge treatment and disposal is a very important system to solve the problem of urban water pollution. Sludge treatment and disposal is the guarantee for the final implementation of sewage treatment. In economically developed countries, sludge disposal is an extremely important link, and its investment accounts for the total of sewage treatment plants. 50%-70% of the investment.
对城市污水处理厂污泥进行土壤化是实现资源节约型、环境友好型的重要手段。城市污水处理厂中污泥经压滤机压滤后污泥含水率仍有80%-90%,含水率难以快速降低,污泥体积非常庞大,阻碍其后续处理且增加运输费用,影响土地利用。目前比较常用的污泥脱水剂有聚丙烯酰胺、铁盐、铝盐、熟石灰等,这些脱水剂用于污泥脱水时用量消耗大,且作用效果并不是非常突出,故急需一种新型有效的污泥脱水剂。Soilization of sludge from urban sewage treatment plants is an important means to achieve resource-saving and environment-friendly. The moisture content of the sludge in the urban sewage treatment plant is still 80%-90% after being filtered by the filter press. It is difficult to quickly reduce the moisture content, and the sludge volume is very large, which hinders its subsequent treatment and increases transportation costs, affecting land use. . At present, the commonly used sludge dewatering agents include polyacrylamide, iron salt, aluminum salt, slaked lime, etc. These dehydrating agents consume a lot of sludge dewatering, and the effect is not very prominent, so a new type of effective dehydrating agent is urgently needed Sludge dehydrator.
发明内容Contents of the invention
发明目的:针对现有技术存在的问题,本发明提供一种复合污泥脱水剂,该复合污泥脱水剂可有有效地降低污泥的含水率,降低污泥体积。Purpose of the invention: Aiming at the problems existing in the prior art, the present invention provides a composite sludge dewatering agent, which can effectively reduce the water content of the sludge and reduce the volume of the sludge.
本发明还提供了一种复合污泥脱水剂的制备及其应用。The invention also provides the preparation and application of a composite sludge dewatering agent.
技术方案:为了实现上述目的,如本发明所述一种复合污泥脱水剂,主要由以下重量份的原料所制成:有机高分子材料2-5份、黏土矿物10-15份、磷酸盐类30-45份、金属氧化物25-35份、工业副产品5-10份。Technical solution: In order to achieve the above purpose, a composite sludge dewatering agent according to the present invention is mainly made of the following raw materials in parts by weight: 2-5 parts of organic polymer materials, 10-15 parts of clay minerals, phosphate 30-45 parts of metal oxides, 25-35 parts of metal oxides, and 5-10 parts of industrial by-products.
其中,所述有机高分子材料为阳离子聚丙烯酰胺或聚二甲基二烯丙基氯化铵。Wherein, the organic polymer material is cationic polyacrylamide or polydimethyldiallylammonium chloride.
所述黏土矿物为海泡石、沸石、膨润土或高岭土中的一种或多种。The clay mineral is one or more of sepiolite, zeolite, bentonite or kaolin.
所述磷酸盐类为过磷酸钙、磷酸氢二钠、磷酸二氢钠或磷酸二氢铵中的中的一种或多种。The phosphates are one or more of calcium superphosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate or ammonium dihydrogen phosphate.
所述金属氧化物为氧化钙或氧化镁。The metal oxide is calcium oxide or magnesium oxide.
所述工业副产品为粉煤灰、石灰、飞灰或赤泥中的一种或多种。The industrial by-products are one or more of fly ash, lime, fly ash or red mud.
本发明所述的复合污泥脱水剂的制备方法,包括如下步骤:将有机高分子材料、粘土矿物、磷酸盐类、金属氧化物、工业副产品按配比进行混合,于70℃-100℃下干燥30min-60min,即得污泥脱水剂,密封保存待用。The preparation method of the composite sludge dewatering agent of the present invention comprises the following steps: mixing organic polymer materials, clay minerals, phosphates, metal oxides, and industrial by-products according to the proportion, and drying at 70°C-100°C After 30min-60min, the sludge dehydrating agent is obtained, which is sealed and stored for later use.
本发明所述的复合污泥脱水剂在降低污泥的含水率中应用。The composite sludge dewatering agent described in the invention is used in reducing the water content of sludge.
所述应用包括如下步骤:The application includes the following steps:
(1)向污水处理厂的污泥中投加复合污泥脱水剂,充分搅拌,混合均匀,得到混凝污泥;(1) Add compound sludge dewatering agent to the sludge of sewage treatment plant, fully stir, mix evenly, obtain coagulation sludge;
(2)将混凝污泥利用压滤工艺进行脱水。(2) The coagulated sludge is dehydrated by a filter press process.
其中,步骤(1)所述投加复合污泥脱水剂占污泥质量比为7-10%。Wherein, the compound sludge dewatering agent added in the step (1) accounts for 7-10% of the sludge mass.
本发明中有机高分子材料选用阳离子聚丙烯酰胺和聚二甲基二烯丙基氯化铵,利用高分子结构的桥联作用,连接更多的聚合物,发挥“电中和”和“架桥作用”,作用时用量少,效率高,且无毒副作用;In the present invention, cationic polyacrylamide and polydimethyldiallyl ammonium chloride are selected as the organic polymer material, and the bridging effect of the polymer structure is used to connect more polymers to exert "electricity neutralization" and "framework". "Bridge effect", less dosage, high efficiency, and no side effects;
黏土矿物选用海泡石、沸石、膨润土和高岭土,以增强污泥的分散稳定性;Sepiolite, zeolite, bentonite and kaolin are selected as clay minerals to enhance the dispersion stability of sludge;
磷酸盐类选用过磷酸钙、磷酸氢二钠、磷酸二氢钠和磷酸二氢铵,以中和污泥表面电荷,使其更易被压滤;Phosphates are calcium superphosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate and ammonium dihydrogen phosphate to neutralize the surface charge of the sludge and make it easier to be filtered;
金属氧化物选用氧化钙和氧化镁,以改善污泥的酸性环境,利于后续的污泥脱水;Calcium oxide and magnesium oxide are selected as metal oxides to improve the acidic environment of the sludge and facilitate subsequent sludge dehydration;
工业副产品选用粉煤灰、石灰、飞灰和赤泥,利用这些廉价易得的工业副产品,变废为宝,用于污泥的脱水中;它们比表面积较大,吸附性较强,可起到电性中和和吸附架桥的作用,破坏污泥胶体颗粒的稳定,改善污泥的脱水性能。Fly ash, lime, fly ash and red mud are selected as industrial by-products, and these cheap and easy-to-obtain industrial by-products can be used to turn waste into treasure and be used for sludge dehydration; they have a large specific surface area and strong adsorption, which can play a role It has the functions of electrical neutralization and adsorption bridging, destabilizing the sludge colloidal particles and improving the dehydration performance of sludge.
有益效果:与现有技术相比,本发明具有如下优点:本发明的复合污泥脱水剂通过各成分的复合配比,有机高分子材料用量少,大大降低对污泥土壤环境的影响,能有效降低污泥的含水率,并且总体用量也少,效果快,经处理后的污泥含水率可降至40%-45%,降低污泥体积;另外,本发明中复合脱水剂制备方法简单、材料易得,成本低廉,污泥脱水效果稳定,对环境影响小,在污泥处理方面具有良好的市场前景。Beneficial effects: Compared with the prior art, the present invention has the following advantages: the composite sludge dewatering agent of the present invention uses a small amount of organic polymer materials through the composite ratio of each component, greatly reducing the impact on the sludge soil environment, It can effectively reduce the water content of the sludge, and the overall dosage is also small, and the effect is fast. The water content of the treated sludge can be reduced to 40%-45%, reducing the volume of the sludge; in addition, the preparation method of the composite dehydrating agent in the present invention Simple, easily available materials, low cost, stable sludge dehydration effect, little impact on the environment, and good market prospects in sludge treatment.
具体实施方式detailed description
以下结合实施例对本发明作进一步说明。The present invention will be further described below in conjunction with embodiment.
实施例1Example 1
将阳离子聚丙烯酰胺2份、膨润土和沸石的混合物15份、过磷酸钙40份、氧化镁33份、粉煤灰和石灰10份,进行混合,于100℃下干燥30min,将得到的污泥脱水剂密封保存待用。Mix 2 parts of cationic polyacrylamide, 15 parts of a mixture of bentonite and zeolite, 40 parts of superphosphate, 33 parts of magnesium oxide, 10 parts of fly ash and lime, and dry at 100°C for 30 minutes. The dehydrating agent is sealed and stored for later use.
实施例2Example 2
将聚二甲基二烯丙基氯化铵3份、高岭土10份、磷酸二氢钠40份、氧化钙35份、飞灰和赤泥混合物5份,进行混合,于70℃下干燥60min,将得到的污泥脱水剂密封保存待用。Mix 3 parts of polydimethyldiallyl ammonium chloride, 10 parts of kaolin, 40 parts of sodium dihydrogen phosphate, 35 parts of calcium oxide, 5 parts of a mixture of fly ash and red mud, and dry at 70°C for 60 minutes. The obtained sludge dewatering agent is sealed and stored for later use.
实施例3Example 3
将阳离子聚丙烯酰胺5份、海泡石12份、磷酸二氢铵35份、氧化镁25份、粉煤灰8份,进行混合,于80℃下干燥50min,将得到的污泥脱水剂密封保存待用。Mix 5 parts of cationic polyacrylamide, 12 parts of sepiolite, 35 parts of ammonium dihydrogen phosphate, 25 parts of magnesium oxide, and 8 parts of fly ash, dry at 80°C for 50 minutes, and seal the obtained sludge dehydrating agent Save for later use.
实施例4Example 4
将阳离子聚丙烯酰胺5份、膨润土和沸石的混合物15份、过磷酸钙38份、氧化镁32份、粉煤灰和石灰混合物10份,进行混合,于100℃下干燥50min,将得到的污泥脱水剂密封保存待用。Mix 5 parts of cationic polyacrylamide, 15 parts of a mixture of bentonite and zeolite, 38 parts of superphosphate, 32 parts of magnesium oxide, 10 parts of a mixture of fly ash and lime, and dry at 100°C for 50 minutes. The mud dehydrating agent is sealed and stored for later use.
实施例5Example 5
向污水处理厂的污泥中投加实施例1至4任意一种制备的复合污泥脱水剂,投加复合污泥脱水剂占污泥质量比为7-10%,充分搅拌,混合均匀,处理2-3d,得到混凝污泥,将混凝污泥利用压滤工艺进行脱水。In the sludge of the sewage treatment plant, add the composite sludge dewatering agent prepared by any one of embodiments 1 to 4, add the composite sludge dewatering agent and account for 7-10% of the sludge mass ratio, fully stir, mix uniformly, After 2-3 days of treatment, coagulated sludge is obtained, and the coagulated sludge is dehydrated by a filter press process.
试验例1Test example 1
从南京市某污水处理厂浓缩池中采取污泥,检测原始的污泥含水率为98%,采用实施例5的方法选用实施例1至4制备的复合污泥脱水剂以及对比例1,对污泥进行脱水,分析脱水情况,结果见表1。Sludge is taken from the thickening tank of a sewage treatment plant in Nanjing, and the original sludge moisture content is detected to be 98%. The method of Example 5 is used to select the composite sludge dehydrating agent prepared in Examples 1 to 4 and Comparative Example 1. The sludge was dewatered, and the dehydration situation was analyzed. The results are shown in Table 1.
对比例1为市售的污泥脱水剂,(例如聚丙烯酰胺污泥脱水剂)。Comparative Example 1 is a commercially available sludge dewatering agent (such as polyacrylamide sludge dewatering agent).
表1Table 1
由表1可知,采用本发明实施例1-4制备的污泥脱水剂,与对比例相比能有效降低污泥的含水率,经处理后的污泥含水率可降至40%-45%,降低污泥体积,并且污泥脱水时用量消耗小,处理时间短,且作用效果突出,同时现有的市售脱水剂一般都是有机高分子且含量大,对污泥土壤环境的污染大。As can be seen from Table 1, the sludge dewatering agent prepared by using Examples 1-4 of the present invention can effectively reduce the water content of the sludge compared with the comparative example, and the water content of the treated sludge can be reduced to 40%-45% , reduce the volume of sludge, and the consumption of sludge dehydration is small, the treatment time is short, and the effect is outstanding. At the same time, the existing commercially available dehydrating agents are generally organic polymers with large content, which will cause great pollution to the sludge soil environment. .
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109368955A (en) * | 2018-11-21 | 2019-02-22 | 北京工业大学 | A kind of composition for treating bottom sludge, treatment method and application |
CN109574461A (en) * | 2018-12-18 | 2019-04-05 | 安徽中环环保科技股份有限公司 | A kind of mixed flocculation agent and preparation method thereof for Treatment of Sludge |
CN110372173A (en) * | 2019-06-27 | 2019-10-25 | 北京中持净水材料技术有限公司 | A kind of environmentally-friendly sludge dehydrating and conditioning agent and its application method |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101343137A (en) * | 2008-05-28 | 2009-01-14 | 罗德春 | Method for innocent treatment of bottom oil sludge, scruff and active sludge in petro-chemical industry |
CN101638311A (en) * | 2009-07-10 | 2010-02-03 | 北京古华建业淤泥固化科技有限公司 | Slit and sludge curing agent |
CN102897991A (en) * | 2012-10-17 | 2013-01-30 | 陈启松 | Dewatering method for stainless steel sludge |
CN103466915A (en) * | 2013-09-06 | 2013-12-25 | 长沙水石环境科技有限公司 | Composition for deep dehydration of municipal sludge and dehydration method thereof |
CN103664126A (en) * | 2012-09-20 | 2014-03-26 | 深圳市海川实业股份有限公司 | Sludge curing treatment agent and method for treating sludge by use of curing treatment agent |
US20150197439A1 (en) * | 2014-01-14 | 2015-07-16 | Buckman Laboratories International, Inc. | Use Of Celluloses In Sludge Dewatering, And Sludge Products Thereof |
CN104829088A (en) * | 2015-05-04 | 2015-08-12 | 唐国萍 | Novel sludge dehydrating agent |
CN105314815A (en) * | 2014-05-29 | 2016-02-10 | 宝山钢铁股份有限公司 | Sludge dewatering conditioning agent and dewatering method thereof |
CN105693068A (en) * | 2014-11-26 | 2016-06-22 | 池州灵芝化建材料科技有限公司 | Efficient sludge conditioner |
-
2017
- 2017-02-27 CN CN201710107495.1A patent/CN106830621B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101343137A (en) * | 2008-05-28 | 2009-01-14 | 罗德春 | Method for innocent treatment of bottom oil sludge, scruff and active sludge in petro-chemical industry |
CN101638311A (en) * | 2009-07-10 | 2010-02-03 | 北京古华建业淤泥固化科技有限公司 | Slit and sludge curing agent |
CN103664126A (en) * | 2012-09-20 | 2014-03-26 | 深圳市海川实业股份有限公司 | Sludge curing treatment agent and method for treating sludge by use of curing treatment agent |
CN102897991A (en) * | 2012-10-17 | 2013-01-30 | 陈启松 | Dewatering method for stainless steel sludge |
CN103466915A (en) * | 2013-09-06 | 2013-12-25 | 长沙水石环境科技有限公司 | Composition for deep dehydration of municipal sludge and dehydration method thereof |
US20150197439A1 (en) * | 2014-01-14 | 2015-07-16 | Buckman Laboratories International, Inc. | Use Of Celluloses In Sludge Dewatering, And Sludge Products Thereof |
CN105314815A (en) * | 2014-05-29 | 2016-02-10 | 宝山钢铁股份有限公司 | Sludge dewatering conditioning agent and dewatering method thereof |
CN105693068A (en) * | 2014-11-26 | 2016-06-22 | 池州灵芝化建材料科技有限公司 | Efficient sludge conditioner |
CN104829088A (en) * | 2015-05-04 | 2015-08-12 | 唐国萍 | Novel sludge dehydrating agent |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109368955A (en) * | 2018-11-21 | 2019-02-22 | 北京工业大学 | A kind of composition for treating bottom sludge, treatment method and application |
CN109574461A (en) * | 2018-12-18 | 2019-04-05 | 安徽中环环保科技股份有限公司 | A kind of mixed flocculation agent and preparation method thereof for Treatment of Sludge |
CN110372173A (en) * | 2019-06-27 | 2019-10-25 | 北京中持净水材料技术有限公司 | A kind of environmentally-friendly sludge dehydrating and conditioning agent and its application method |
CN111056729A (en) * | 2020-02-18 | 2020-04-24 | 广州绿邦环境技术有限公司 | Medicament for sludge filter pressing and production process |
CN111056729B (en) * | 2020-02-18 | 2022-06-28 | 广州绿邦环境技术有限公司 | Medicament for sludge filter pressing and production process |
CN115231789A (en) * | 2022-08-17 | 2022-10-25 | 东南大学 | A kind of preparation method of printing and dyeing biochemical sludge composite dewatering agent |
CN116282832A (en) * | 2023-04-26 | 2023-06-23 | 东华大学 | Sludge quick drying agent and its preparation method and application |
CN119263588A (en) * | 2024-11-01 | 2025-01-07 | 北京蓝星清洗有限公司 | A sludge conditioner containing nano-scale hydrophobic material loaded with multi-core metal chelate and its preparation method |
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