WO2012068906A1 - 一种基于深度净化废水后树脂高浓脱附液的处置方法 - Google Patents

一种基于深度净化废水后树脂高浓脱附液的处置方法 Download PDF

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WO2012068906A1
WO2012068906A1 PCT/CN2011/078362 CN2011078362W WO2012068906A1 WO 2012068906 A1 WO2012068906 A1 WO 2012068906A1 CN 2011078362 W CN2011078362 W CN 2011078362W WO 2012068906 A1 WO2012068906 A1 WO 2012068906A1
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resin
desorption liquid
solution
wastewater
treating
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French (fr)
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李爱民
许玲
范俊
姜笔存
蒋淡宁
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Nanjing University
Nanjing Tech University
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Nanjing University
Nanjing Tech University
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5209Regulation methods for flocculation or precipitation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/06Controlling or monitoring parameters in water treatment pH
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • C02F2305/026Fenton's reagent
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1205Particular type of activated sludge processes
    • C02F3/1215Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Definitions

  • the present invention relates to a method for treating a resin desorption liquid, and more particularly to a method for treating a resin high-concentration desorption liquid after deep purification of wastewater based on an anion exchange resin.
  • Biotechnology is the most economical technology for wastewater treatment.
  • waste water also contains products of microbial metabolism and decomposition, toxic substances that cannot be degraded by microorganisms, and various inorganic substances. It needs to be treated in depth to meet environmental standards before it can be discharged.
  • resin technology is a widely used treatment technology.
  • the resin adsorption method has the advantages of large adsorption capacity, strong mechanical properties, and reusability.
  • the desorption liquid desorbed by the biochemical tail water after being treated by the resin has the characteristics of complex composition, high concentration, high toxicity, deep color, and difficulty in biodegradation, which makes the treatment of the desorption liquid a recognized management problem in the environmental protection field. It has also become a "bottleneck" problem that limits the application of resins in various industries. Therefore, how to carry out efficient and economical treatment of desorption liquid is a difficult problem to be solved.
  • desorption liquid treatment methods mainly include enhanced coagulation, catalytic oxidation, catalytic reduction, membrane filtration and the like.
  • the coagulation method generally has a good effect on the removal of macromolecular hydrophobic substances.
  • Catalytic oxidation technology is an advanced oxidation technology with the advantages of complete degradation, no secondary pollution, low energy consumption and low raw material consumption.
  • Fenton oxidation has higher pH requirements
  • ozone oxidation has the disadvantages of large construction investment and high operating cost.
  • Membrane filtration also has the disadvantages of high membrane production cost and easy contamination. Therefore, it is difficult to carry out efficient and economical treatment of the desorption liquid in a single treatment process, and a combination process using various processes is necessary.
  • the present invention provides a high concentration desorption liquid based on deep purification of wastewater. Disposal method, the coagulation and advanced oxidation combination process is used for the recovery and disposal of the resin desorption liquid when the magnetic anion exchange resin is used to treat the biochemical tail water, and the TOC and UV 254 of the nanofiltration retentate can be largely The removal of the BOD 5 /COD CT is improved, the biochemical effluent is basically stable, and the processing problem of the resin high-concentration desorption liquid is solved.
  • a method for treating a resin-based high-concentration desorption liquid based on deep purification of wastewater the steps of which are as follows:
  • the resin high-concentration desorption solution after treating the biochemical tail water with anion exchange resin enters the nanofiltration membrane system for separation, and the operating pressure is 1.0-2.5 MPa, which is mainly divided into nanofiltration membrane permeate containing small molecular substances and
  • the nanofiltration membrane retentate mainly contains macromolecular organic matter; wherein the volume of the nanofiltration membrane retentate is about 1/7 of the volume of the high concentration desorption liquid, and the produced nanofiltration membrane is oxidized and can be used as desorption. Recycling agent;
  • the nanofiltration retentate produced in step 1) is coagulated with a certain concentration of coagulant, and the coagulant is FeCl 3 *6H 2 0, FeS0 4 •7H 2 0, A1 2 (S0 4 ) 3 * 18H 20 , polyaluminum chloride, PAC, etc.; the mass percentage of the added coagulant is 1%-5%, the pH of the solution after coagulation and precipitation is between 2-5, and the TOC removal rate is 35%-55%. ;
  • step 3 taking the coagulated supernatant obtained in step 2), performing Fenton oxidation or ozone oxidation; adding FeS0 4 *7H 2 0 by mass percentage of 0.1% to 2%, and adding 30% by mass of hydrogen peroxide solution 1%-4%; the concentration of ozone introduced is 3mg/L-10mg L, after the reaction for -5h, the TOC removal rate reaches 60%-80%;
  • the oxidizing solution obtained in the step 3) is adjusted to pH 8.5-10.5 with sodium hydroxide or calcium hydroxide solution to further coagulate and precipitate, and after treatment, the BOD 5 /COD CT of the wastewater is increased to 0.4 or more;
  • step 5) The solution obtained in step 4) is further processed into a simulated activated sludge biochemical system.
  • Step 5 The influent COD is 200-400 mg L, and the volume of the solution after the addition of the alkali solution is 1%. -5%. After 12-18h treatment, the removal rate of effluent COD is 40%-65%.
  • the activated sludge still has a good treatment capacity for the wastewater; the treatment liquid can be returned to the biochemical tailwater biochemical system for further biodegradation, and the high-concentration desorption liquid is recycled.
  • Step 2 The coagulant used is FeCl 3 *6H 2 0, FeS0 4 *7H 2 0, A1 2 (S0 4 ) 3 * 18H 2 0, polyaluminum chloride or PAC.
  • the percentage by mass of the added coagulant in the solution is from 1% to 5%.
  • the pH of the solution after coagulation precipitation is between 2 and 5.
  • Step 3) Add the solution of FeS0 4 *7H 2 0?
  • the mass percentage is from 0.1% to 2%.
  • the Fenton reagent used, wherein the mass percentage of the hydrogen peroxide solution added in an amount of 30% by weight is from 1% to 4%.
  • the concentration of ozone introduced is from 3 mg/L to 10 mg/L.
  • Step 4) The lye used is a sodium hydroxide or calcium hydroxide solution.
  • the invention relates to a method for treating a resin high-concentration desorption liquid after deep purification of wastewater, and the nanofiltration membrane is used for intercepting the resin desorption liquid, which can be divided into two parts: a nanofiltration membrane permeate and a nanofiltration membrane retentate;
  • the nanofiltration membrane permeate can be reused as a desorbent after oxidation, and the nanofiltration retentate can be pretreated by a combination process of coagulation, oxidation and recoagulation, and the treated nanofiltration retentate TOC, UV 254 is largely removed, BOD 5 /COD CT is increased to above 0.4, and then Description
  • the treatment liquid is further treated by an activated sludge method. Therefore, after the nanofiltration retentate is treated by the above process, it can be returned to the biochemical system of the biochemical tail water section, so that it is well treated.
  • the method can be widely used in the treatment of high-concentration desorption liquids produced by the treatment of biochemical tail water by anion exchange resin technology.
  • the obtained treatment liquid obtained by coagulation of calcium hydroxide is introduced into an activated sludge system for further treatment.
  • the influent COD was 200 mg/L, and the added treatment liquid had a weight of 1% of the biochemical tail water. After 12h treatment, the removal rate of effluent COD was 40%. After repeated experiments, it was proved that the treatment liquid can be returned to the biochemical tailwater biochemical system for further biodegradation, and the high-concentration desorption liquid can be recycled.
  • the solution is coagulated and precipitated, and the coagulated supernatant is subjected to Fenton oxidation.
  • the amount of FeS0 4 *7H 2 0 is 0.5% (w/w)
  • the amount of 30% hydrogen peroxide solution is 1% (w/ w)
  • the reaction was carried out for 3 h, and the oxidized solution after Fenton oxidation was adjusted to pH 9.5 with sodium hydroxide solution and precipitated for 0.5 h.
  • the removal rate of the solution after treatment was 80%.
  • the obtained treatment liquid obtained by coagulation of sodium hydroxide is introduced into an activated sludge system for further treatment.
  • the influent COD was 200 mg/L, and the volume of the treatment liquid added was 1%. After 12h treatment, the removal rate of effluent COD was 40%. After repeated experiments, it was proved that the treatment liquid can be returned to the biochemical tailwater biochemical system for further biodegradation, and the high-concentration desorption liquid can be recycled.
  • the nanofiltration retentate obtained by passing the resin desorption solution through the nanofiltration membrane was coagulated with 1% (w/w) FeS0 4 *7H 2 0 solution.
  • the TOC removal rate of the solution after treatment was 65%, and the BOD 5 /COD CT was increased to 0.41.
  • the obtained treatment liquid obtained by coagulation of calcium hydroxide is introduced into an activated sludge system for further treatment. Influent COD is 400mg/L, added Description
  • the volume of the treatment liquid is 5%. After 18h treatment, the removal rate of effluent COD was 65%. After repeated experiments, it was proved that the treatment liquid can be returned to the biochemical tailwater biochemical system for further biodegradation, and the high-concentration desorption liquid can be recycled.
  • the nanofiltration retentate obtained by passing the resin desorption solution through the nanofiltration membrane was coagulated and precipitated with 2% (w/w) PAC solution to obtain coagulation.
  • the supernatant is subjected to ozone oxidation, the concentration of ozone is 10 mg/L, and the reaction is carried out for 5 hours.
  • the oxidized solution after oxidation of ozone is coagulated and precipitated with sodium hydroxide solution, and the pH is adjusted to 9.0 and precipitated for 0.5 hour.
  • the removal rate of the TOC of the solution was 70%, and the BOD 5 /COD CT was increased to 0.45.
  • the obtained treatment liquid obtained by coagulation of sodium hydroxide is introduced into an activated sludge system for further treatment.
  • the influent COD was 400 mg L, and the volume of the treatment liquid added was 5%. After 18h treatment, the removal rate of effluent COD was 65%. After repeated experiments, it was proved that the treatment liquid can be returned to the biochemical tailwater biochemical system for further biodegradation, and the high-concentration desorption liquid can be recycled.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Description

说 明 书 一种基于深度净化废水后树脂高浓脱附液的处置方法 技术领域
本发明涉及的是一种树脂脱附液的处置方法, 具体而言, 是一种基于阴离子交换树脂深 度净化废水后树脂高浓脱附液的处置方法。
背景技术
改革开放以来, 我国精细化工飞速发展, 为国民经济的腾飞作出了重要贡献, 但该行业 排放的废水往往具有成分复杂、 浓度高、 毒性大、 色泽深、 难以生物降解等特点, 这些废水 给生态系统和环境造成了严重的污染。 寻求适合的方法对这些废水进行有效地处理己成当务 之急。
生物技术是废水处理最经济的技术, 但生物技术后, 废水中还残留微生物代谢及分解的 产物、 不能被微生物降解的有毒物质以及各种无机物等, 还需深度处理达到环境标准后才能 排放。 在各类废水的深度处理技术中, 树脂技术是被广泛使用的处理技术。 树脂吸附法具有 吸附容量大、 机械性能强、 可重复利用等优点。 然而生化尾水经树脂处理后脱附下来的脱附 液具有成分复杂、 浓度高、 毒性大、 色泽深、 难以生物降解等特点, 这就使得脱附液的处理 成为环保界公认的治理难题, 也成为限制树脂在各行各业应用的一个 "瓶颈" 问题。 因此, 脱附液如何进行高效经济的处理, 是急需解决的一个难题。
常用的脱附液的处理方法主要有强化混凝、 催化氧化、 催化还原、 膜滤等。 混凝法通常 对大分子疏水性物质去除效果较好, 然而其具有混凝剂用量大, 污泥产生量大, 难直接达标, 对极性小分子有机物去除效果差等缺点。催化氧化技术是一种高级氧化技术,具有降解完全、 无二次污染、 能耗和原材料消耗低的优点。 然而 Fenton氧化对 pH要求较高, 臭氧氧化具有 建设投资大, 运行费用高等缺点。 膜滤也具有膜制作成本高、 容易污染等缺点。 因此, 单一 的处理工艺很难对脱附液进行高效经济的处理, 采用各种工艺的组合工艺就很有必要。
发明内容
1、 发明要解决的技术问题
由于树脂技术的广泛应用, 产生了大量的树脂脱附液, 现有的处理工艺很难对脱附液进行高 效经济的处理, 本发明提供一种基于深度净化废水后树脂高浓脱附液的处置方法, 将混凝和 高级氧化组合工艺用于磁性阴离子交换树脂对生化尾水进行处理时树脂脱附液的回收与处 置, 可以对纳滤截留液的 TOC和 UV254都有较大程度上的去除, 提高了其 BOD5/CODCT, 生 化出水基本稳定, 解决树脂高浓脱附液的处理难题。 说 明 书
2、 技术方案
一种基于深度净化废水后树脂高浓脱附液的处置方法, 其步骤如下:
1 )将阴离子交换树脂处理生化尾水后的树脂高浓脱附液, 进入纳滤膜系统进行分离, 操作压 力在 1.0-2.5MPa, 主要分为含有小分子物质的纳滤膜透过液及主要含有大分子有机物的纳滤 膜截留液两部分; 其中纳滤膜截留液的体积为高浓脱附液体积的 1/7左右, 产生的纳滤膜透 过液进行氧化后可作为脱附剂重复利用;;
2)对步骤 1 )产生的纳滤截留液用一定浓度的混凝剂进行混凝,混凝剂有 FeCl3*6H20、 FeS04 •7H20、 A12(S04)3* 18H20、 聚合氯化铝、 PAC等; 加入的混凝剂的质量百分比为 1%-5%, 混 凝沉淀后的溶液的 pH在 2-5之间, TOC去除率达到 35%-55%;
3 )取步骤 2)获得的混凝上清液, 进行 Fenton氧化或臭氧氧化; 加入 FeS04*7H20的质量百 分比为 0.1%-2%, 加入的 30%的过氧化氢溶液的质量百分比为 1%-4%; 通入的臭氧的浓度为 3mg/L-10mg L, 反应 l-5h后, TOC去除率达到 60%-80%;
4)将步骤 3 )获得的氧化液用氢氧化钠或氢氧化钙溶液调节其 pH至 8.5-10.5, 进一步混凝沉 淀, 经处理后, 废水的 BOD5/CODCT提高至 0.4以上;
5 ) 将步骤 4) 获得的溶液进入模拟的活性污泥生化系统进一步处理。
步骤 5 )进水 COD为 200-400mg L,加入的经碱液混凝后的溶液的体积为 1%。-5%。, 经过 12-18h处理后, 出水 COD的去除率在 40%-65%。 活性污泥对废水仍有较好的处理能力; 处 理液可返回到生化尾水段生化系统进一步生物降解, 实现了高浓脱附液的循环处理。
步骤 2) 所用的混凝剂为 FeCl3*6H20、 FeS04*7H20、 A12(S04)3* 18H20、 聚合氯化铝或 PAC。 加入的混凝剂在溶液中的质量百分比为 1%-5%。 混凝沉淀后的溶液的 pH值在 2-5之 间。
步骤 3 )加入的 FeS04*7H20的所占溶液?质量百分比为 0.1%-2%。 所用 Fenton试剂, 其中加入的重量百分比含量 30%的过氧化氢溶液的质量百分比为 1%-4%。通入的臭氧的浓度 为 3mg/L-10mg/L。
步骤 4 )所用的碱液为氢氧化钠或氢氧化钙溶液。
3、 有益效果
本发明一种基于深度净化废水后树脂高浓脱附液的处置方法, 利用纳滤膜对树脂脱附液 进行截留, 可分为纳滤膜透过液及纳滤膜截留液两部分; 其中纳滤膜透过液可经氧化后作为 脱附剂重复利用, 纳滤截留液可通过混凝、 氧化、 再混凝组合工艺对其进行预处理, 经处理 后的纳滤截留液 TOC、 UV254均有很大程度上的去除, BOD5/CODCT提高至 0.4以上, 然后将 说 明 书
处理液用活性污泥法进行进一步处理。 因此, 纳滤截留液经上述工艺处理后, 可返回到生化 尾水段的生化系统中, 从而得到很好的处理。 该方法可广泛使用于各类利用阴离子交换树脂 技术对生化尾水进行处理时产生的高浓脱附液的处理。
具体实施方式
以下通过具体实施实例进一步说明本发明
实施例 1
印染废水经生化处理后的生化尾水经阴离子交换树脂深度处理后产生大量的树脂脱附 液, 将树脂脱附液经纳滤膜后得到的纳滤截留液 (TOC含量为 3000mg/L, pH=9.0-10.5 ) 用 1% (w/w)的 FeCl3*6H20溶液, 进行混凝沉淀, 取混凝上清液进行 Fenton氧化, 加入 FeS04 •7H20的量为 0.1% (w/w), 30%的过氧化氢溶液的量为 1% (w/w), 反应 3h, 再将 Fenton 氧化后的氧化液用氢氧化钙乳浊液进行混凝沉淀,调节 PH=8.5后沉淀 0.5h,经处理后溶液的 TOC的去除率为 60%。将氢氧化钙混凝后的得到的处理液进入活性污泥系统中进行进一歩处 理。 进水 COD为 200mg/L, 加入的处理液的重量为生化尾水的 1 %。, 经过 12h处理后, 出水 COD的去除率为 40%。经多次重复实验后证明, 处理液可返回到生化尾水段生化系统进一步 生物降解, 实现高浓脱附液的循环处理。
实施例 2
将树脂脱附液经纳滤膜后得到的纳滤截留液 (TOC含量为 3500mg/L, pH=9.0-10.5 ) 用 5% (w/w) 的 A12(S04)3* 18H20溶液, 进行混凝沉淀, 取混凝上清液进行 Fenton氧化, 加入 FeS04*7H20的量为 0.5% (w/w), 30%的过氧化氢溶液的量为 l% (w/w),反应 3h,再将 Fenton 氧化后的氧化液用氢氧化钠溶液调节 pH=9.5后沉淀 0.5h, 经处理后溶液的 TOC的去除率为 80%。将氢氧化钠混凝后的得到的处理液进入活性污泥系统中进行进一步处理。进水 COD为 200mg/L, 加入的处理液的体积为 1%。, 经过 12h处理后, 出水 COD的去除率为 40%。 经多 次重复实验后证明, 处理液可返回到生化尾水段生化系统进一步生物降解, 实现高浓脱附液 的循环处理。
实施例 3
将树脂脱附液经纳滤膜后得到的纳滤截留液(TOC含量为 3000mg/L, pH=9.5-10)用 1% (w/w)的 FeS04*7H20溶液, 进行混凝沉淀, 取混凝上清液进行臭氧氧化, 通入的臭氧的浓 度为 3mg/L,反应 3h,再将臭氧氧化后的氧化液用氢氧化钙乳浊液进行混凝沉淀,调节 pH=10.5 后沉淀 0.5h, 经处理后溶液的 TOC的去除率为 65%, BOD5/CODCT提高至 0.41。 将氢氧化钙 混凝后的得到的处理液进入活性污泥系统中进行进一歩处理。进水 COD为 400mg/L,加入的 说 明 书
处理液的体积为 5%。,经过 18h处理后,出水 COD的去除率为 65%。经多次重复实验后证明, 处理液可返回到生化尾水段生化系统进一步生物降解, 实现高浓脱附液的循环处理。
实施例 4
将树脂脱附液经纳滤膜后得到的纳滤截留液(TOC含量为 3500mg/L, pH=9.5-10)用 2% (w/w) 的 PAC 溶液, 进行混凝沉淀, 取混凝上清液进行臭氧氧化, 通入的臭氧的浓度为 10mg/L, 反应 5h, 再将臭氧氧化后的氧化液用氢氧化钠溶液进行混凝沉淀, 调节 pH=9.0后 沉淀 0.5h, 经处理后溶液的 TOC的去除率为 70%, BOD5/CODCT提高至 0.45。 将氢氧化钠混 凝后的得到的处理液进入活性污泥系统中进行进一步处理。进水 COD为 400mg L,加入的处 理液的体积为 5%。, 经过 18h处理后, 出水 COD的去除率为 65%。 经多次重复实验后证明, 处理液可返回到生化尾水段生化系统进一步生物降解, 实现高浓脱附液的循环处理。

Claims

权 利 要 求 书
1. 一种基于深度净化废水后树脂高浓脱附液的处置方法, 其步骤为:
a)经过阴离子交换树脂处理的高浓脱附液经过纳滤膜截留后分为高浓纳滤截留液以及纳滤透 过液, 纳滤透过液经氧化以后可以作为脱附剂重复利用;
b) 在步骤 a)产生的高浓纳滤截留液中加入混凝剂, 进行混凝沉淀;
c)对混凝沉淀后的上清液进行 Fenton氧化或臭氧氧化 l-5h;
d) 将 c) 反应后的溶液, 加入碱液, 调节至 pH值为 8.5-10.5, 进一步混凝沉淀;
e)将 d)混凝沉淀后的液体返回到生化尾水段的生化系统进一步进行生物降解, 用阴离子交 换树脂处理生物降解后的废水。
2. 根据权利要求 1所述的一种基于深度净化废水后树脂高浓脱附液的处置方法, 其特征在于 步骤 b )所用的混凝剂为 FeCl3*6H20、 FeS04*7H20、 A12(S04)3* 18H20, 聚合氯化铝或 PAC。
3. 根据权利要求 2所述的一种基于深度净化废水后树脂高浓脱附液的处置方法, 其特征在于 步骤 b )加入的混凝剂在溶液中的质量百分比为 1%-5%。
4. 根据权利要求 3所述的一种基于深度净化废水后树脂高浓脱附液的处置方法, 其特征在于 步骤 b ) 混凝沉淀后的溶液的 pH值在 2-5之间。
5. 根据权利要求 1〜3中任一项所述的一种基于深度净化废水后树脂高浓脱附液的处置方法, 其特征在于步骤 c) 加入的 FeS04*7H20的所占溶液?质量百分比为 0.1%-2%。
6. 根据权利要求 1〜3中任一项所述的一种基于深度净化废水后树脂高浓脱附液的处置方法, 其特征在于步骤 c) 所用 Fenton试剂, 其中加入的重量百分比含量 30%的过氧化氢溶液的质 量百分比为 1%-4%。
7. 根据权利要求 1〜3 中任一项所述的一种基于阴离子交换树脂深度净化废水后树脂高浓脱 附液的处置方法, 其特征在于步骤 c) 通入的臭氧的浓度为 3mg/L-10mg/L。
8. 根据权利要求 1〜3 中任一项所述的一种基于阴离子交换树脂深度净化废水后树脂高浓脱 附液的处置方法, 其特征在于步骤 d) 所用的碱液为氢氧化钠或氢氧化钙溶液。
9. 根据权利要求 1〜3中任一项所述的一种基于深度净化废水后树脂高浓脱附液的处置方法, 其特征在于步骤 e) 的混凝沉淀后的液体进行生物降解, 其在活性污泥系统中的停留时间为 12 -進。
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* Cited by examiner, † Cited by third party
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5053287A (zh) * 1973-09-12 1975-05-12
JPH11565A (ja) * 1997-06-11 1999-01-06 Kubota Corp イオン交換樹脂再生廃液の処理方法および処理装置
CN101514058A (zh) * 2009-04-03 2009-08-26 中矿威德能源科技(北京)有限公司 去除水中三价砷离子及五价砷离子的方法及系统
CN101659457A (zh) * 2009-09-15 2010-03-03 南京大学 一种处理生化尾水树脂脱附液的回收与处置方法
CN102050554A (zh) * 2010-11-24 2011-05-11 南京大学 一种基于深度净化废水后树脂高浓脱附液的处置方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462275A (en) * 1968-01-31 1969-08-19 Gen Electric Waste conversion process and product
US3773659A (en) * 1970-12-16 1973-11-20 Babson Bros Co System for processing wastes
US4537682A (en) * 1982-01-29 1985-08-27 Environmental Research & Technology Activated sludge wastewater treating process
DE3815271A1 (de) * 1988-05-05 1989-11-16 Sandoz Ag Verfahren zur reinigung von industrieabwaessern
TW593164B (en) * 2003-07-30 2004-06-21 Min-Shing Tsai Integrated technology in sequential treatment of organics and heavy metal ions wastewater
CN101054216A (zh) * 2007-04-03 2007-10-17 南京大学 一种城市生活垃圾渗滤液生化膜滤浓缩后的处理方法
CN100569356C (zh) * 2007-08-10 2009-12-16 南京大学 一种树脂用于印染废水的深度处理及回用的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5053287A (zh) * 1973-09-12 1975-05-12
JPH11565A (ja) * 1997-06-11 1999-01-06 Kubota Corp イオン交換樹脂再生廃液の処理方法および処理装置
CN101514058A (zh) * 2009-04-03 2009-08-26 中矿威德能源科技(北京)有限公司 去除水中三价砷离子及五价砷离子的方法及系统
CN101659457A (zh) * 2009-09-15 2010-03-03 南京大学 一种处理生化尾水树脂脱附液的回收与处置方法
CN102050554A (zh) * 2010-11-24 2011-05-11 南京大学 一种基于深度净化废水后树脂高浓脱附液的处置方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015032941A1 (en) * 2013-09-09 2015-03-12 Kemira Oyj Process for purifying water
CN116903190A (zh) * 2023-08-17 2023-10-20 苏州盛虹环保科技有限公司 一种印染废水高效净化处理的方法

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