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CN101348305B - A method for treating phenol-containing wastewater by immobilizing Alcaligenes faecalis with wood chips - Google Patents

A method for treating phenol-containing wastewater by immobilizing Alcaligenes faecalis with wood chips Download PDF

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CN101348305B
CN101348305B CN2008101431470A CN200810143147A CN101348305B CN 101348305 B CN101348305 B CN 101348305B CN 2008101431470 A CN2008101431470 A CN 2008101431470A CN 200810143147 A CN200810143147 A CN 200810143147A CN 101348305 B CN101348305 B CN 101348305B
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phenol
alcaligenes faecalis
containing wastewater
wood chip
sawdust
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CN101348305A (en
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曾虹燕
姜和
夏葵
廖凯波
黄炎
王亚举
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Xiangtan University
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Abstract

本发明公开了一种木屑固定化粪产碱杆菌处理含苯酚废水的方法。本发明具有如下优势:1、用于固定化的粪产碱杆菌易于培养,固定化工艺简单;固定化粪产碱杆菌催化降解效果好,耐高浓度含苯酚废水,降酚能力强,可耐受苯酚浓度高达3000mg·L-1的含苯酚废水,可重复使用。2、固定化粪产碱杆菌载体为木屑,利用化学方法对木屑加以改性利用,提高了微生物降解处理含苯酚废水效率,具有广阔的发展前景。3、木屑为载体制备的固定化粪产碱杆菌,弹性好,对温度、pH值耐受性强,降解性能稳定,半衰期长。4、木屑固定化粪产碱杆菌处理含苯酚废水,工艺简单,运行费用低,条件温和,环境友好,菌体不易流失、载体内微生物浓度高、降解速度快、降解效率高、无二次污染,同时可连续化工业降解含苯酚废水。The invention discloses a method for treating phenol-containing wastewater by immobilizing Alcaligenes faecalis with sawdust. The present invention has the following advantages: 1. The Alcaligenes faecalis used for immobilization is easy to cultivate, and the immobilization process is simple; the catalytic degradation effect of the immobilized Alcaligenes faecalis is good, it is resistant to high-concentration phenol-containing wastewater, has a strong ability to reduce phenol, and can withstand Phenol-containing wastewater with a phenol concentration as high as 3000mg·L -1 can be reused. 2. The carrier of immobilized Alcaligenes faecalis is sawdust, and the sawdust is modified and utilized by chemical methods, which improves the efficiency of microbial degradation and treatment of phenol-containing wastewater, and has broad development prospects. 3. The immobilized Alcaligenes faecalis prepared by sawdust as a carrier has good elasticity, strong tolerance to temperature and pH value, stable degradation performance and long half-life. 4. Sawdust immobilized Alcaligenes faecalis to treat phenol-containing wastewater, with simple process, low operating costs, mild conditions, friendly environment, not easy to lose bacteria, high microbial concentration in the carrier, fast degradation speed, high degradation efficiency, and no secondary pollution , At the same time, it can degrade phenol-containing wastewater in continuous chemical industry.

Description

一种木屑固定化粪产碱杆菌处理含苯酚废水的方法 A method for treating phenol-containing wastewater by immobilizing Alcaligenes faecalis with wood chips

技术领域technical field

本发明涉及一种用微生物催化降解含苯酚废水的方法。The invention relates to a method for catalytically degrading phenol-containing wastewater by using microorganisms.

背景技术Background technique

含苯酚废水是一种来源广、数量多、浓度高、环境危害大的水污染源,也是我国水污染控制急需解决的重点难点之一。生物法降解含苯酚废水,具有工艺简单,条件温和,环境友好,处理成本低,二次污染小等优点。一般5-500mg·L-1的含苯酚废水适合采用生物法处理,但对更高含量的含苯酚废水处理效果却不理想[孙敏等,中国医学工程杂志.2004,12(3):93-94;章杰等,四川环境.2006,25(1):8-10]。游离微生物可降解高浓度含苯酚废水(1000-2000mg·L-1)[龚斌等,环境科学学报.2006,37(6):2008-2012;杨素亮,化学工业与工程.2006,23(4):287-290;CN1500802的苯酚羟化酶基因及其用途];其中从活性污泥分离得到的粪产碱杆菌(Alcaligenes faecalis)对含苯酚废水的最大可降解能力为1600mg·L-1[Bai Jing et al,Process Biochemistry.2007,42(4):510-517]。但均存在菌体易流失、微生物浓度低、降解速度慢及产生大量污泥造成二次污染,占地面积大等不足之处。将微生物固定化可克服上述缺陷,同时固定化微生物具有化学稳定性、成形效果、传质通透性、抗降解能力、重复再生使用等方面优势。将固定化微生物置于反应器中,可组成一个快速高效连续处理工艺系统,易于连续化生产。固定化微生物用于废水处理已成为国内外生物处理废水的研究热点。固定化微生物可降解较高浓度含苯酚废水[孙艳等,环境科学研究.1999,12(1):1-4;吴志国,微生物学通报.2005,32(4):31-36;CN1066832A的固定化大型食用真菌菌丝处理含酚废水方法]。以海藻硅酸钠等为载体,包埋法制备固定化细胞可降解苯酚浓度1650mg·L-1的含酚废水[何泽超,四川/大学学报(工程科学版).2005,37(6):61-64],其降解速度和降解效率均高于游离状态下的。Phenol-containing wastewater is a source of water pollution with a wide range of sources, a large quantity, high concentration, and great environmental hazards. It is also one of the key difficulties in water pollution control in my country. Biological degradation of phenol-containing wastewater has the advantages of simple process, mild conditions, environmental friendliness, low treatment cost, and less secondary pollution. Generally, 5-500 mg·L -1 phenol-containing wastewater is suitable for biological treatment, but the treatment effect for higher levels of phenol-containing wastewater is not ideal [Sun Min et al., Chinese Journal of Medical Engineering. 2004, 12(3): 93 -94; Zhang Jie et al., Sichuan Environment. 2006, 25(1): 8-10]. Free microorganisms can degrade high-concentration phenol-containing wastewater (1000-2000mg·L -1 ) [Gong Bin et al., Journal of Environmental Science. 2006, 37(6): 2008-2012; Yang Suliang, Chemical Industry and Engineering. 2006, 23(4 ): 287-290; the phenol hydroxylase gene of CN1500802 and its use]; wherein the maximum degradability of Alcaligenes faecalis (Alcaligenes faecalis) isolated from activated sludge to phenol-containing wastewater is 1600mg L -1 [ Bai Jing et al, Process Biochemistry. 2007, 42(4): 510-517]. However, there are deficiencies such as easy loss of bacteria, low microbial concentration, slow degradation rate, secondary pollution caused by a large amount of sludge, and large floor area. Immobilizing microorganisms can overcome the above defects, and immobilized microorganisms have advantages in chemical stability, forming effect, mass transfer permeability, anti-degradation ability, and repeated regeneration. Putting the immobilized microorganisms in the reactor can form a rapid and efficient continuous treatment process system, which is easy for continuous production. The use of immobilized microorganisms in wastewater treatment has become a research hotspot in biological wastewater treatment at home and abroad. Immobilized microorganisms can degrade higher concentrations of phenol-containing wastewater [Sun Yan et al., Environmental Science Research. 1999, 12 (1): 1-4; Wu Zhiguo, Microbiology Bulletin. 2005, 32 (4): 31-36; CN1066832A Method for treating phenolic wastewater with immobilized macroscopic edible fungus mycelia]. Using seaweed sodium silicate as a carrier, the immobilized cell-degradable phenol-containing wastewater with a phenol concentration of 1650mg L -1 was prepared by embedding method [He Zechao, Sichuan / University Journal (Engineering Science Edition). 2005, 37(6): 61 -64], its degradation rate and degradation efficiency are higher than those in the free state.

木屑固定化白腐真菌对焦化废水中的苯酚(500mg·L-1)去除率为游离白腐真菌的1.5倍[卢永等,化学与生物工程,2006,23(12):47-49]。我们用木屑固定化粪产碱杆菌JH1013Alcaligenes faecalis JH1013,CCTCC NO:M208006),固定化粪产碱杆菌对含苯酚废水的最大可耐受能力达3000mg·L-1The removal rate of phenol (500 mg·L -1 ) in coking wastewater immobilized by sawdust immobilized white rot fungi is 1.5 times that of free white rot fungi [Lu Yong et al., Chemical and Biological Engineering, 2006, 23(12): 47-49] . We used sawdust to immobilize Alcaligenes faecalis JH1013, CCTCC NO: M208006), and the maximum tolerance of the immobilized Alcaligenes faecalis to phenol-containing wastewater was 3000 mg·L -1 .

发明内容Contents of the invention

本发明目的是提供一种活性高、使用寿命长、价格低廉、易于连续化工业处理的木屑固定化粪产碱杆菌,以及用该木屑固定化粪产碱杆菌处理含苯酚废水的方法。The object of the present invention is to provide a sawdust immobilized Alcaligenes faecalis with high activity, long service life, low price and easy for continuous industrial treatment, and a method for treating phenol-containing wastewater with the sawdust immobilized Alcaligenes faecalis.

本发明的目的是通过如下方式实现的:The purpose of the present invention is achieved in the following manner:

一种木屑固定化粪产碱杆菌处理含苯酚废水的方法,其特征包括以下步骤:A kind of method that sawdust immobilizes Alcaligenes faecalis to process phenol-containing wastewater is characterized in that it comprises the following steps:

(1)、木屑预处理:将20-100目的木屑,投入5-20%的亚硫酸钠溶液中,调节pH至2.0-4.0,60-100℃浸泡24-64h,水冲洗,用10-30%的氢氧化钠溶液中和呈中性,水洗,烘干;(1) Sawdust pretreatment: put 20-100 mesh wood chips into 5-20% sodium sulfite solution, adjust the pH to 2.0-4.0, soak at 60-100°C for 24-64h, wash with water, and use 10-30% The sodium hydroxide solution is neutralized to be neutral, washed with water, and dried;

(2)、粪产碱杆菌固定化:将粪产碱杆菌JH1013Alcaligenes faecalis JH1013CCTCC NO:M208006菌种进行常规培养,将木屑浸泡于菌液中,菌液温度25-35℃,pH6.0-8.0,闷曝,固定菌种48-120h,滤去菌液,制得木屑固定化粪产碱杆菌;(2) Immobilization of Alcaligenes faecalis: Routinely culture the strain of Alcaligenes faecalis JH1013Alcaligenes faecalis JH1013CCTCC NO: M208006, soak the sawdust in the bacterial liquid, the temperature of the bacterial liquid is 25-35°C, pH6.0-8.0, Stuffed exposure, fixed bacterial strains for 48-120h, filtered out the bacterial liquid, and made sawdust immobilized Alcaligenes faecalis;

(3)、木屑固定化粪产碱杆菌处理含苯酚废水:将木屑固定化粪产碱杆菌填入塔式生物滤池内的圆柱形反应器中,注入新鲜培养液,活化木屑固定化粪产碱杆菌12-72h,水洗去残余培养液,然后,通入含苯酚废水,废水温度20-40℃,pH5.0-10.0,进行曝气生化处理,定时取水样测定处理效果。(3) Treatment of phenol-containing wastewater by sawdust immobilized Alcaligenes septica: fill sawdust immobilized Alcaligenes septica into the cylindrical reactor in the tower biofilter, inject fresh culture medium, and activate the sawdust immobilized septic Alkaline bacteria for 12-72 hours, wash away the residual culture solution, then pass through phenol-containing wastewater, the wastewater temperature is 20-40°C, pH 5.0-10.0, aerated biochemical treatment is carried out, and water samples are taken regularly to measure the treatment effect.

在曝气生化处理时按供每吨含苯酚废水通入50-200m3的空气或10.5-42m3的纯氧。During aerated biochemical treatment, 50-200m 3 of air or 10.5-42m 3 of pure oxygen is fed per ton of phenol-containing wastewater.

置于柱形反应器内处理含苯酚废水的木屑固定化粪产碱杆菌,用后取出可烘干用作燃料。The sawdust immobilized Alcaligenes faecalis is placed in a columnar reactor to treat phenol-containing wastewater, and can be taken out after use and can be dried and used as fuel.

本发明具有如下优势:1、用于固定化的粪产碱杆菌易于培养,固定化工艺简单;固定化粪产碱杆菌催化降解效果好,耐高浓度含苯酚废水,降酚能力强,可耐受苯酚浓度高达3000mg·L-1的含苯酚废水,可重复使用。2、固定化粪产碱杆菌载体为木屑,利用化学方法对木屑加以改性利用,提高了微生物降解处理含苯酚废水效率,具有广阔的发展前景。3、木屑为载体制备的固定化粪产碱杆菌,弹性好,对温度、pH值耐受性强,降解性能稳定,半衰期长。4、木屑固定化粪产碱杆菌处理含苯酚废水,工艺简单,运行费用低,条件温和,环境友好,菌体不易流失、载体内微生物浓度高、降解速度快、降解效率高、无二次污染,同时可连续化工业降解含苯酚废水。The present invention has the following advantages: 1. The Alcaligenes faecalis used for immobilization is easy to cultivate, and the immobilization process is simple; the catalytic degradation effect of the immobilized Alcaligenes faecalis is good, it is resistant to high-concentration phenol-containing wastewater, has a strong ability to reduce phenol, and can withstand Phenol-containing wastewater with a phenol concentration as high as 3000mg·L -1 can be reused. 2. The carrier of immobilized Alcaligenes faecalis is sawdust, and the sawdust is modified and utilized by chemical methods, which improves the efficiency of microbial degradation and treatment of phenol-containing wastewater, and has broad development prospects. 3. The immobilized Alcaligenes faecalis prepared by sawdust as a carrier has good elasticity, strong tolerance to temperature and pH value, stable degradation performance and long half-life. 4. Sawdust immobilized Alcaligenes faecalis to treat phenol-containing wastewater, with simple process, low operating costs, mild conditions, friendly environment, not easy to lose bacteria, high microbial concentration in the carrier, fast degradation speed, high degradation efficiency, and no secondary pollution , At the same time, it can degrade phenol-containing wastewater in continuous chemical industry.

具体实施方式Detailed ways

下面结合实施例对本发明做进一步说明:The present invention will be further described below in conjunction with embodiment:

本发明方法是以木屑为载体,吸附粪产碱杆菌JH1013制备木屑固定化粪产碱杆菌用于处理含苯酚废水,粪产碱杆菌JH1013(Alcaligenes faecalis JH1013)菌种在申请人申请“一种用粪产碱杆菌及其用于催化降解苯酚废水的方法”专利(申请号:200810030880.1,申请日:2008.3.2)时,已于2008年1月9日保藏在中国武汉武汉大学中国典型培养物保藏中心,保藏编号CCTCCNO:M208006。The method of the present invention uses sawdust as a carrier, absorbs Alcaligenes faecalis JH1013 to prepare sawdust and immobilizes Alcaligenes faecalis to treat waste water containing phenol, and the strain of Alcaligenes faecalis JH1013 (Alcaligenes faecalis JH1013) in the applicant's application for "a kind of use Alcaligenes faecalis and its method for catalyzing the degradation of phenol waste water" patent (application number: 200810030880.1, application date: 2008.3.2), was preserved in Wuhan University, Wuhan, China on January 9, 2008. Chinese Type Culture Collection Center, deposit number CCTCCNO: M208006.

实施例1:Example 1:

将5.0kg40目木屑投入15%的亚硫酸钠溶液中,调节pH至4.0,在60℃下浸泡48h,水冲洗。用20%的氢氧化钠溶液中和,水洗,烘干。Put 5.0kg of 40-mesh sawdust into 15% sodium sulfite solution, adjust the pH to 4.0, soak at 60°C for 48h, and rinse with water. Neutralize with 20% sodium hydroxide solution, wash with water, and dry.

在100L容器中接入粪产碱杆菌JH1013进行常规培养,将木屑浸泡于菌液中,菌液温度30℃,pH7.0,闷曝固定化粪产碱杆菌48h,滤去菌液,制得木屑固定化粪产碱杆菌。Introduce Alcaligenes faecalis JH1013 into a 100L container for routine culture, soak the sawdust in the bacterial solution, the temperature of the bacterial solution is 30°C, pH 7.0, expose to fixed Alcaligenes faecalis for 48 hours, and filter out the bacterial solution to obtain Wood chips immobilize Alcaligenes faecalis.

将木屑固定化粪产碱杆菌填入塔式生物滤池内的圆柱形反应器内,注入新鲜培养液,活化木屑固定化粪产碱杆菌18h,水洗去残余培养液。通入某化工厂含苯酚废水(进水口COD平均值为4000mg·L-1,进水口苯酚浓度为990mg·L-1),废水温度30℃,pH7.0,按供每吨含苯酚废水通入100m3的空气进行曝气生化降酚处理。出水口COD为39.84mg·L-1,出水口苯酚含量<0.5mg·L-1,COD去除率达99.01%。出水水质达到国家GB8928-1996污水综合排放标准。Fill the sawdust-fixed Alcaligenes faecalis into the cylindrical reactor in the tower biofilter, inject fresh culture solution, activate the sawdust-fixed Alcaligenes faecalis for 18 hours, and wash away the residual culture solution. The wastewater containing phenol is passed into a chemical plant (the average COD of the water inlet is 4000mg·L -1 , the phenol concentration of the water inlet is 990mg·L -1 ), the temperature of the wastewater is 30°C, and the pH is 7.0. Inject 100m 3 of air for aeration and biochemical phenol reduction treatment. The COD of the outlet is 39.84mg·L -1 , the phenol content of the outlet is <0.5mg·L -1 , and the COD removal rate reaches 99.01%. The effluent quality meets the national GB8928-1996 sewage comprehensive discharge standard.

实施例2:Example 2:

将5.0kg80目木屑投入20%的亚硫酸钠溶液中,调节pH至4.0,在60℃下浸泡48h,水冲洗,15%的氢氧化钠溶液中和,水洗,烘干。Put 5.0kg of 80-mesh sawdust into 20% sodium sulfite solution, adjust the pH to 4.0, soak at 60°C for 48 hours, rinse with water, neutralize with 15% sodium hydroxide solution, wash with water, and dry.

在100L容器中接入粪产碱杆菌JH1013进行常规培养,将木屑浸泡于菌液中,菌液温度35℃,pH7.5,闷曝固定化粪产碱杆菌72h,滤去菌液,制得木屑固定化粪产碱杆菌。Introduce Alcaligenes faecalis JH1013 into a 100L container for routine culture, soak the sawdust in the bacterial solution, the temperature of the bacterial solution is 35°C, pH 7.5, expose to fixed Alcaligenes faecalis for 72 hours, filter out the bacterial solution, and obtain Wood chips immobilize Alcaligenes faecalis.

将固定化粪产碱杆菌填入塔式生物滤池内的圆柱形反应器内,注入新鲜培养液,活化木屑固定化粪产碱杆菌48h,水洗去残余培养液。通入某焦化厂含苯酚废水(进水口COD平均值为5000mg·L-1,进水口苯酚浓度为1500mg·L-1),废水温度35℃,pH7.5,按供每吨含苯酚废水通入32m3的纯氧进行曝气生化降酚处理。出水口COD为313.93mg·L-1,出水口苯酚含量<135.63mg·L-1,COD和苯酚的去除率分别为93.72%和90.42%。Fill the immobilized Alcaligenes faecalis into the cylindrical reactor in the tower biofilter, inject fresh culture solution, activate the sawdust immobilized Alcaligenes faecalis for 48 hours, and wash away the residual culture solution. The wastewater containing phenol is passed into a coking plant (the average COD of the water inlet is 5000mg·L -1 , the phenol concentration of the water inlet is 1500mg·L -1 ), the temperature of the wastewater is 35°C, and the pH is 7.5. Inject 32m 3 of pure oxygen for aerated biochemical phenol reduction treatment. The COD of the outlet was 313.93mg·L -1 , the phenol content of the outlet was <135.63mg·L -1 , and the removal rates of COD and phenol were 93.72% and 90.42%, respectively.

Claims (3)

1. the method for a treating phenol-containing wastewater using wood chip immobilized Alcaligenes faecalis, its feature may further comprise the steps:
(1), wood chip pre-treatment: with 20-100 purpose wood chip, drop in the sodium sulfite solution of 5-20%, regulate pH to 2.0-4.0,60-100 ℃ is soaked 24-64h, and the water flushing is neutral with the sodium hydroxide solution neutralization of 10-30%, and washing is dried;
(2), Bacillus foecalis alkaligenes immobilization: Bacillus foecalis alkaligenes JH 1013Alcaligenes faecalis JH1013CCTCC NO:M 208006 bacterial classifications are carried out routine cultivate, wood chip is soaked in the bacterium liquid, 25-35 ℃ of bacterium liquid temp, pH 6.0-8.0, vexed exposing to the sun, fixing bacterial classification 48-120h, elimination bacterium liquid makes wood chip immobilization Bacillus foecalis alkaligenes;
(3), treating phenol-containing wastewater using wood chip immobilized Alcaligenes faecalis: wood chip immobilization Bacillus foecalis alkaligenes is inserted in the cylindrical reactor in the tower biological filter, inject fresh medium, activation wood chip immobilization Bacillus foecalis alkaligenes 12-72h, residual culture is gone in washing, then, feeds wastewater containing phenol, wastewater temperature 20-40 ℃, pH 5.0-10.0 carries out aeration biochemical and handles, and regularly water sampling is measured treatment effect.
2. according to the method for the described a kind for the treatment of phenol-containing wastewater using wood chip immobilized Alcaligenes faecalis of claim 1, it is characterized in that: when aeration biochemical is handled, press and feed 50-200m for wastewater containing phenol per ton 3Air or 10.5-42m 3Pure oxygen.
3. according to the method for the described a kind for the treatment of phenol-containing wastewater using wood chip immobilized Alcaligenes faecalis of claim 1, it is characterized in that: place the wood chip immobilization Bacillus foecalis alkaligenes of handling wastewater containing phenol in the cylindrical reactor, take out oven dry as fuel with the back.
CN2008101431470A 2008-09-05 2008-09-05 A method for treating phenol-containing wastewater by immobilizing Alcaligenes faecalis with wood chips Expired - Fee Related CN101348305B (en)

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CN104611247B (en) * 2014-07-18 2019-07-26 中国矿业大学(北京) Application of one plant of Alcaligenes faecalis DQP3 in degradation of phenol and quinoline
CN105063160A (en) * 2015-09-19 2015-11-18 内蒙古阜丰生物科技有限公司 Environment-friendly process for preparing monosodium glutamate through concentration-isoelectric process
CN105063159B (en) * 2015-09-19 2021-06-25 内蒙古阜丰生物科技有限公司 Novel process for concentrating continuous isoelectric extraction of glutamic acid
CN105039487A (en) * 2015-09-19 2015-11-11 呼伦贝尔东北阜丰生物科技有限公司 Novel concentrating and continuous isoelectric extraction technology for glutamic acid
CN105087740A (en) * 2015-09-20 2015-11-25 呼伦贝尔东北阜丰生物科技有限公司 Sodium glutamate extraction process through concentrating continuous isoelectric point crystallization
CN105039488A (en) * 2015-09-20 2015-11-11 呼伦贝尔东北阜丰生物科技有限公司 Method for extracting gourmet powder through concentration isoelectric point technology
CN105087702A (en) * 2015-09-20 2015-11-25 呼伦贝尔东北阜丰生物科技有限公司 Method for preparing sodium glutamate through concentrating continuous freezing isoelectric point crystallization
CN106434429A (en) * 2016-08-30 2017-02-22 河海科技工程集团有限公司 High-density cultured alcaligenes faecalis and preparation method and application thereof
CN108500059B (en) * 2018-04-12 2019-05-10 青岛农业大学 Use of Alcaligenes faecalis, Alcaligenes faecalis WZ-2 and its prepared degrading agent and usage
CN110526418B (en) * 2019-08-19 2021-04-09 江南大学 Method for degrading antibiotics in culture wastewater by using immobilized pycnoporus sp

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