CN104370367A - Method for pretreating textile dyeing wastewater containing high-concentration sulfate by coupling catalytic iron with hydrolysis and acidification - Google Patents
Method for pretreating textile dyeing wastewater containing high-concentration sulfate by coupling catalytic iron with hydrolysis and acidification Download PDFInfo
- Publication number
- CN104370367A CN104370367A CN201410562109.4A CN201410562109A CN104370367A CN 104370367 A CN104370367 A CN 104370367A CN 201410562109 A CN201410562109 A CN 201410562109A CN 104370367 A CN104370367 A CN 104370367A
- Authority
- CN
- China
- Prior art keywords
- catalytic iron
- coupling reaction
- acidification
- hydrolysis
- catalytic
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 61
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 44
- 230000020477 pH reduction Effects 0.000 title claims abstract description 38
- 239000002351 wastewater Substances 0.000 title claims abstract description 33
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 30
- 238000004043 dyeing Methods 0.000 title claims abstract description 23
- 239000004753 textile Substances 0.000 title claims abstract description 23
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 18
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title claims description 10
- 238000010168 coupling process Methods 0.000 title claims description 5
- 230000008878 coupling Effects 0.000 title claims description 4
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 3
- 231100000719 pollutant Toxicity 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000002203 pretreatment Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims 3
- 230000031018 biological processes and functions Effects 0.000 claims 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract description 20
- 230000014759 maintenance of location Effects 0.000 abstract description 8
- 230000015271 coagulation Effects 0.000 abstract description 4
- 238000005345 coagulation Methods 0.000 abstract description 4
- 244000005700 microbiome Species 0.000 abstract description 4
- 239000005416 organic matter Substances 0.000 abstract description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005842 biochemical reaction Methods 0.000 abstract description 3
- 230000005764 inhibitory process Effects 0.000 abstract description 3
- 231100000419 toxicity Toxicity 0.000 abstract description 3
- 230000001988 toxicity Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- -1 iron ions Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 241000894006 Bacteria Species 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 4
- 235000003891 ferrous sulphate Nutrition 0.000 description 3
- 239000011790 ferrous sulphate Substances 0.000 description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 230000027721 electron transport chain Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000000852 hydrogen donor Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
- C02F1/705—Reduction by metals
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (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)
Abstract
本发明涉及一种催化铁耦合水解酸化预处理含高浓度硫酸根纺织印染废水的方法，催化铁材料加入水解酸化耦合反应池，以固定式或运动式两种方式运行，解决方案包括以下步骤：（1）制备催化铁材料，根据废水的特征和污染物种类制备相应的催化铁材料。（2）设置水解酸化耦合反应池，水解酸化耦合反应池内投加催化铁材料。（3）高浓度SO4 2-纺织印染废水进入上述放置了催化铁材料的水解酸化耦合反应池，控制水力停留时间为2–10h；进水pH为5.0–10.5。（4）经过催化铁与水解酸化耦合反应池预处理的出水再进行好氧生物处理。本发明是将催化铁材料与水解酸化耦合预处理含高浓度SO4 2-纺织印染废水，产生增效的协同作用，从而提高废水中SO4 2-去除率；降低硫化物含量，减小毒害有机物和硫化物对微生物的抑制；并利用铁离子的混凝和改性作用，促进整个生化反应。The invention relates to a method for pretreating textile printing and dyeing wastewater containing high-concentration sulfate radicals with catalytic iron coupled with hydrolysis and acidification. Catalytic iron materials are added to a hydrolysis and acidification coupling reaction pool to operate in two modes: fixed or moving. The solution includes the following steps: (1) Prepare catalytic iron materials, and prepare corresponding catalytic iron materials according to the characteristics of wastewater and the types of pollutants. (2) Set up a hydrolysis and acidification coupling reaction pool, and add catalytic iron materials into the hydrolysis and acidification coupling reaction pool. (3) High-concentration SO 4 2- textile printing and dyeing wastewater enters the above-mentioned hydrolysis acidification coupling reaction tank with catalytic iron materials, and the hydraulic retention time is controlled at 2-10h; the pH of the influent is 5.0-10.5. (4) The effluent pretreated by the catalytic iron and hydrolytic acidification coupling reaction tank is then subjected to aerobic biological treatment. The present invention couples the catalytic iron material with hydrolytic acidification to pretreat the textile printing and dyeing wastewater containing high concentration of SO 4 2- to produce a synergistic effect, thereby increasing the removal rate of SO 4 2- in the wastewater; reducing the sulfide content and reducing the toxicity Inhibition of microorganisms by organic matter and sulfide; and the use of coagulation and modification of iron ions to promote the entire biochemical reaction.
Description
技术领域 technical field
本发明涉及水污染控制工程领域，具体涉及一种污水预处理方法，特别是使用催化铁耦合水解酸化工艺预处理含高浓度SO4 2-纺织印染废水的方法。 The invention relates to the field of water pollution control engineering, in particular to a sewage pretreatment method, in particular to a method for pretreating high-concentration SO 4 2- textile printing and dyeing wastewater by using a catalytic iron-coupled hydrolysis and acidification process.
背景技术 Background technique
纺织印染废水因排放量大、水质复杂、处理难度高，成为废水治理工艺研究的重点和难点。为提高纺织印染废水的可生化性，需要对废水进行预处理。比较常见的工艺是“硫酸亚铁混凝+水解酸化”工艺。硫酸亚铁是最常见和廉价易得的混凝剂，其溶液呈酸性；而纺织印染废水呈碱性，由此可避免调节废水的pH值，节省成本。水解酸化作为一种有效的预处理手段，可以将大分子物质分解为小分子物质，提高废水的可生化性，减小后续好氧处理的难度。 Textile printing and dyeing wastewater has become the focus and difficulty of wastewater treatment process research due to its large discharge volume, complex water quality, and high difficulty in treatment. In order to improve the biodegradability of textile printing and dyeing wastewater, it is necessary to pretreat the wastewater. The more common process is the "ferrous sulfate coagulation + hydrolytic acidification" process. Ferrous sulfate is the most common and cheap and easy-to-obtain coagulant, and its solution is acidic; while textile printing and dyeing wastewater is alkaline, which can avoid adjusting the pH value of wastewater and save costs. As an effective pretreatment method, hydrolytic acidification can decompose macromolecular substances into small molecular substances, improve the biodegradability of wastewater, and reduce the difficulty of subsequent aerobic treatment.
实际工程中发现，由于纺织印染过程添加大量硫酸钠，同时废水混凝过程投加硫酸亚铁也伴有SO4 2-加入，造成水解酸化预处理进水中SO4 2-的含量很高。水解酸化作为厌氧过程的前两个阶段，是一兼性厌氧过程。硫酸盐还原菌属厌氧菌，能还原硫酸盐为硫化物，利用有机物为供氢体，在还原硫酸盐的过程中获得能量。在厌氧反应器中，硫酸盐会被硫酸盐还原菌（SRB）作为电子受体加以利用，最终还原为硫化氢。过高硫酸盐存在，刺激并促使硫酸还原菌的增殖，从而产生大量的硫化氢。硫化氢在水中的溶解度很高，每克S2-相当于2gCOD。硫化氢有毒性，会对微生物产生抑制作用，不利于生化反应正常进行。事实证明，尽管水解酸化反应器不是严格的厌氧反应器，高浓度的硫酸盐废水仍会刺激硫酸盐还原菌的生长，产生大量的S2-，不仅造成废水的COD去除率下降，且严重抑制水解酸化菌的生命活动，因此S2-的去除是一亟待解决的问题。 In the actual project, it was found that due to the addition of a large amount of sodium sulfate in the textile printing and dyeing process, and the addition of ferrous sulfate in the wastewater coagulation process is also accompanied by the addition of SO 4 2- , resulting in a high content of SO 4 2- in the influent of hydrolytic acidification pretreatment. Hydrolytic acidification, as the first two stages of anaerobic process, is a facultative anaerobic process. Sulfate-reducing bacteria are anaerobic bacteria that can reduce sulfate to sulfide, use organic matter as a hydrogen donor, and obtain energy in the process of reducing sulfate. In the anaerobic reactor, sulfate is utilized by sulfate-reducing bacteria (SRB) as electron acceptors and eventually reduced to hydrogen sulfide. The presence of excessively high sulfate stimulates and promotes the proliferation of sulfate-reducing bacteria, thereby producing a large amount of hydrogen sulfide. The solubility of hydrogen sulfide in water is very high, and every gram of S 2- is equivalent to 2gCOD. Hydrogen sulfide is toxic and can inhibit microorganisms, which is not conducive to the normal progress of biochemical reactions. Facts have proved that although the hydrolytic acidification reactor is not a strictly anaerobic reactor, high-concentration sulfate wastewater will still stimulate the growth of sulfate-reducing bacteria and produce a large amount of S 2- , which not only causes a decrease in the COD removal rate of wastewater, but also seriously Inhibit the life activities of hydrolytic acidification bacteria, so the removal of S 2- is an urgent problem to be solved.
发明内容 Contents of the invention
本发明的目的，是通过将催化铁与水解酸化耦合，实现废水中S2-的去除和毒害有机物的还原转化，提高水解酸化预处理效果；适用范围为含高浓度SO4 2-纺织印染废水预处理。 The purpose of the present invention is to realize the removal of S 2- in wastewater and the reduction and transformation of toxic organic matter by coupling catalytic iron with hydrolytic acidification, and improve the effect of hydrolytic acidification pretreatment; the scope of application is textile printing and dyeing wastewater containing high concentration of SO 4 2- preprocessing.
本发明提出的一种催化铁耦合水解酸化预处理含高浓度硫酸根纺织印染废水的方法，具体步骤如下： A kind of method that the present invention proposes to catalyze iron-coupled hydrolysis acidification pretreatment textile printing and dyeing wastewater containing high-concentration sulfate radicals, concrete steps are as follows:
(1)制备催化铁材料，根据废水的特征和污染物种类制备相应的催化铁材料；所述催化铁材料，采用铁表面镀铜双金属体系，铜铁质量比应控制在(0.1–0.3):100；或采用铜屑与铁屑混合体系，铜铁质量比应控制在(1–3):100； (1) Prepare the catalytic iron material, prepare the corresponding catalytic iron material according to the characteristics of the wastewater and the types of pollutants; the catalytic iron material adopts a copper-plated bimetallic system on the iron surface, and the mass ratio of copper to iron should be controlled at (0.1-0.3) :100; or use a mixed system of copper filings and iron filings, the mass ratio of copper and iron should be controlled at (1–3):100;
(2)设置水解酸化耦合反应池，向水解酸化耦合反应池内投加步骤(1)得到的催化铁材料； (2) A hydrolysis acidification coupling reaction tank is set, and the catalytic iron material obtained in step (1) is added to the hydrolysis acidification coupling reaction tank;
(3)含高浓度硫酸根纺织印染废水进入步骤(2)放置了催化铁材料的水解酸化耦合反应池，控制水力停留时间为2–10h；进水pH为5.0–10.5； (3) Textile printing and dyeing wastewater containing high concentration of sulfate enters into step (2) a hydrolytic acidification coupling reaction pool with catalytic iron materials is placed, and the hydraulic retention time is controlled to be 2-10h; the pH of the influent is 5.0-10.5;
(4)经过催化铁与水解酸化耦合反应池预处理的出水再进行好氧生物处理。 (4) The effluent pretreated by the catalytic iron and hydrolytic acidification coupling reaction tank is then subjected to aerobic biological treatment.
本发明中，所述催化铁材料固定于水解酸化耦合反应池内，做成固定式反应床，催化铁材料投加率为0.05–0.4kg/m3；或催化铁材料通过搅拌浆强制运动，做成运动床，催化铁材料投加率为0.02–0.1kg/m3。 In the present invention, the catalytic iron material is fixed in the hydrolytic acidification coupling reaction tank to form a fixed reaction bed, and the dosage rate of the catalytic iron material is 0.05-0.4kg/m 3 ; or the catalytic iron material is forced to move through the stirring paddle to make into a moving bed, and the dosage rate of catalytic iron material is 0.02–0.1kg/m 3 .
本发明的方法将催化铁与水解酸化耦合，并不是单独发挥两者的作用，而是产生增效的协同作用：①催化铁的快速还原作用，可以减小毒害有机物或者重金属对微生物的抑制和毒害；同时催化铁还原产生的Fe2+可以与S2-生成FeS沉淀，降低S2-对微生物的毒害抑制，提高水解酸化的处理效率。②Fe2+可增大细胞膜的渗透性，加快营养物质的吸收，并作为电子传递链的重要部分，参与电子的传递，促进生化反应；同时还具有混凝和表面改性作用，改善细菌的絮凝或挂膜性能，促进活性污泥沉淀。③一体化的耦合方式可效减少构筑物占地面积，简化运行和管理维护操作。 The method of the present invention couples catalytic iron with hydrolytic acidification, and does not play the role of both alone, but produces a synergistic effect of synergy: ①The rapid reduction of catalytic iron can reduce the inhibition of toxic organic matter or heavy metals on microorganisms and Toxicity; at the same time, Fe 2+ produced by catalyzing iron reduction can form FeS precipitation with S 2- , reduce the toxicity inhibition of S 2- to microorganisms, and improve the treatment efficiency of hydrolysis and acidification. ②Fe 2+ can increase the permeability of the cell membrane, accelerate the absorption of nutrients, and as an important part of the electron transport chain, participate in the transfer of electrons and promote biochemical reactions; at the same time, it also has the effect of coagulation and surface modification, improving the flocculation of bacteria Or film-hanging properties to promote activated sludge sedimentation. ③ The integrated coupling method can effectively reduce the occupied area of the structure and simplify the operation, management and maintenance operations.
具体实施方式 Detailed ways
实施例1：pH偏酸性纺织印染废水 Example 1: pH acidic textile printing and dyeing wastewater
将金属加工废品铁屑（俗称：铁刨花，材质为碳钢）、及冷轧紫铜泊（厚0.05至0.4mm）边角废料，用机械方法轧碎，最大径长不超过600mm，以铁铜质量比100:1均匀混合投加于反应池，投加量为0.03kg/m3，池底部设平板浆，催化铁材料慢速运动，形成运动式反应床。高浓度SO4 2-纺织印染废水进入设有催化铁材料的水解酸化耦合反应池，进水pH为5.0。水解酸化耦合反应池中无溶解氧，水力停留时间控制在2.0h。 Metal processing waste iron filings (commonly known as: iron shavings, made of carbon steel), and cold-rolled red copper (thickness 0.05 to 0.4mm) corner scraps are crushed by mechanical means, and the maximum diameter does not exceed 600mm. The mass ratio of 100:1 is uniformly mixed and added to the reaction tank, and the dosage is 0.03kg/m 3 . A flat paddle is set at the bottom of the tank, and the catalytic iron material moves slowly to form a moving reaction bed. High-concentration SO 4 2- textile printing and dyeing wastewater enters the hydrolysis acidification coupling reaction tank equipped with catalytic iron materials, and the pH of the influent water is 5.0. There is no dissolved oxygen in the hydrolytic acidification coupling reaction tank, and the hydraulic retention time is controlled at 2.0h.
处理效果：出水COD去除率为26.6%，SO4 2-去除率为40.6%，S2-浓度为12.1mg/L。 Treatment effect: effluent COD removal rate is 26.6%, SO 4 2- removal rate is 40.6%, S 2- concentration is 12.1mg/L.
实施例2：pH偏碱性纺织印染废水 Example 2: pH partial alkaline textile printing and dyeing wastewater
采用例1相同的运动式反应床，仅改变铁铜质量比为100:3。高浓度SO4 2-纺织印染废水进入催化铁与水解酸化耦合反应池，进水pH为10.5。水解酸化耦合反应池中无溶解氧，水力停留时间控制在10h。 Using the same moving reaction bed as in Example 1, only the mass ratio of iron to copper was changed to 100:3. High-concentration SO 4 2- textile printing and dyeing wastewater enters the coupling reaction pool of catalytic iron and hydrolytic acidification, and the pH of the influent is 10.5. There is no dissolved oxygen in the hydrolytic acidification coupling reaction tank, and the hydraulic retention time is controlled at 10h.
处理效果：出水COD去除率为40.3%，SO4 2-去除率为62.7%，S2-浓度为0.00mg/L。 Treatment effect: effluent COD removal rate is 40.3%, SO 4 2- removal rate is 62.7%, S 2- concentration is 0.00mg/L.
实施例3：固定床反应器 Embodiment 3: fixed bed reactor
采用例1相同的铁材料，通过化学镀的方式将0.3%铜单质镀在铁屑表面，形成催化铁材料，机械压缩制备成堆积密度为0.20 kg/m3填料。高浓度SO4 2-纺织印染废水进入催化铁与水解酸化耦合反应池，进水pH为8.4。水解酸化耦合反应池中无溶解氧，水力停留时间控制在2.0h。 Using the same iron material as in Example 1, 0.3% copper is plated on the surface of iron filings by electroless plating to form a catalytic iron material, which is mechanically compressed to prepare a packing with a bulk density of 0.20 kg/m 3 . High-concentration SO 4 2- textile printing and dyeing wastewater enters the coupling reaction pool of catalytic iron and hydrolysis acidification, and the pH of the influent is 8.4. There is no dissolved oxygen in the hydrolytic acidification coupling reaction tank, and the hydraulic retention time is controlled at 2.0h.
处理效果：出水COD去除率为32.6%，SO4 2-去除率为38.9%，S2-浓度为9.46mg/L。 Treatment effect: effluent COD removal rate is 32.6%, SO 4 2- removal rate is 38.9%, S 2- concentration is 9.46mg/L.
实施例4：运动床反应器 Embodiment 4: moving bed reactor
采用例3相同的催化铁材料制备方法；采例1运动式反应床，仅改变投加量为0.02kg/m3。高浓度SO4 2-纺织印染废水进入催化铁与水解酸化耦合反应池，进水pH为8.4。水解酸化耦合反应池中无溶解氧，水力停留时间控制在10h。 Adopt the same preparation method of the catalytic iron material as in Example 3; use the moving reaction bed in Example 1, only change the dosage to 0.02kg/m 3 . High-concentration SO 4 2- textile printing and dyeing wastewater enters the coupling reaction pool of catalytic iron and hydrolysis acidification, and the pH of the influent is 8.4. There is no dissolved oxygen in the hydrolytic acidification coupling reaction tank, and the hydraulic retention time is controlled at 10h.
处理效果：出水COD去除率为42.6%，SO4 2-去除率为68.9%，S2-浓度为0.00mg/L。 Treatment effect: effluent COD removal rate is 42.6%, SO 4 2- removal rate is 68.9%, S 2- concentration is 0.00mg/L.
实施例5：铜铁材料混合固定床反应器 Embodiment 5: Copper-iron material mixed fixed-bed reactor
采用例1相同的铁和铜材料，机械压缩制备成堆积密度为0.40 kg/m3填料。高浓度SO4 2-纺织印染废水进入催化铁与水解酸化耦合反应池，进水pH为8.4。水解酸化耦合反应池中无溶解氧，水力停留时间控制在10h。 Using the same iron and copper materials as in Example 1, mechanically compress to prepare a packing with a bulk density of 0.40 kg/m 3 . High-concentration SO 4 2- textile printing and dyeing wastewater enters the coupling reaction pool of catalytic iron and hydrolysis acidification, and the pH of the influent is 8.4. There is no dissolved oxygen in the hydrolytic acidification coupling reaction tank, and the hydraulic retention time is controlled at 10h.
处理效果：出水COD去除率为43.7%，SO4 2-去除率为69.4%，S2-浓度为0.00mg/L。 Treatment effect: effluent COD removal rate is 43.7%, SO 4 2- removal rate is 69.4%, S 2- concentration is 0.00mg/L.
实施例6：铜铁材料混合运动床反应器 Embodiment 6: copper-iron material mixed moving bed reactor
采用例1相同的运动式反应床，仅改变投加量为0.05 kg/m3。高浓度SO4 2-纺织印染废水进入催化铁与水解酸化耦合反应池，进水pH为8.4。反应池中无溶解氧，水力停留时间控制在2.0h。 Use the same moving reaction bed as Example 1, only change the dosage to 0.05 kg/m 3 . High-concentration SO 4 2- textile printing and dyeing wastewater enters the coupling reaction pool of catalytic iron and hydrolysis acidification, and the pH of the influent is 8.4. There is no dissolved oxygen in the reaction tank, and the hydraulic retention time is controlled at 2.0h.
处理效果：出水COD去除率为18.6%，SO4 2-去除率为38.3%，S2-浓度为8.3mg/L。 Treatment effect: effluent COD removal rate is 18.6%, SO 4 2- removal rate is 38.3%, S 2- concentration is 8.3mg/L.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562109.4A CN104370367A (en) | 2014-10-22 | 2014-10-22 | Method for pretreating textile dyeing wastewater containing high-concentration sulfate by coupling catalytic iron with hydrolysis and acidification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562109.4A CN104370367A (en) | 2014-10-22 | 2014-10-22 | Method for pretreating textile dyeing wastewater containing high-concentration sulfate by coupling catalytic iron with hydrolysis and acidification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104370367A true CN104370367A (en) | 2015-02-25 |
Family
ID=52549613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410562109.4A Pending CN104370367A (en) | 2014-10-22 | 2014-10-22 | Method for pretreating textile dyeing wastewater containing high-concentration sulfate by coupling catalytic iron with hydrolysis and acidification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104370367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926039A (en) * | 2015-06-19 | 2015-09-23 | 王桂霞 | Method for treating printing and dyeing wastewater |
| CN115403138A (en) * | 2021-05-26 | 2022-11-29 | 上海泓济环保科技股份有限公司 | Method for treating high-sulfate pharmaceutical wastewater by coupling iron-based material with anaerobic organisms |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348314A (en) * | 2008-09-12 | 2009-01-21 | 镇江市水业总公司 | Synergistic pretreatment of industrial wastewater by catalytic iron reduction and anaerobic hydrolysis acidification |
| JP5238002B2 (en) * | 2010-09-16 | 2013-07-17 | 水ｉｎｇ株式会社 | Organic waste water treatment apparatus and treatment method |
| CN103359897A (en) * | 2013-08-07 | 2013-10-23 | 山东太平洋环保有限公司 | Process and device for treating high-concentration sulfate radical textile-dyeing wastewater |
-
2014
- 2014-10-22 CN CN201410562109.4A patent/CN104370367A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348314A (en) * | 2008-09-12 | 2009-01-21 | 镇江市水业总公司 | Synergistic pretreatment of industrial wastewater by catalytic iron reduction and anaerobic hydrolysis acidification |
| JP5238002B2 (en) * | 2010-09-16 | 2013-07-17 | 水ｉｎｇ株式会社 | Organic waste water treatment apparatus and treatment method |
| CN103359897A (en) * | 2013-08-07 | 2013-10-23 | 山东太平洋环保有限公司 | Process and device for treating high-concentration sulfate radical textile-dyeing wastewater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926039A (en) * | 2015-06-19 | 2015-09-23 | 王桂霞 | Method for treating printing and dyeing wastewater |
| CN115403138A (en) * | 2021-05-26 | 2022-11-29 | 上海泓济环保科技股份有限公司 | Method for treating high-sulfate pharmaceutical wastewater by coupling iron-based material with anaerobic organisms |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102107997B (en) | Method for treating leachate of domestic waste incineration plants | |
| CN101591082B (en) | Method and device for multicomponent oxide pretreatment of organic electroplating waste water | |
| CN102897979B (en) | Coking wastewater treatment method | |
| CN102295385B (en) | Garbage percolate processing technology | |
| KR101665636B1 (en) | Wastewater pretreatment method and sewage treatment method using the pretreatment method | |
| CN102583903B (en) | Method for treating antibiotic wastewater | |
| CN101624250B (en) | Anaerobic zero-valent iron sewage treatment method | |
| CN105906154B (en) | A kind of method of the recycling treatment recycling of board wastewater | |
| CN103359876A (en) | Harmless dimethylacetamide wastewater treatment method | |
| CN106277555B (en) | High-efficiency low-cost treatment method and system for coking wastewater | |
| CN104891719A (en) | Method for pre-treating organic industrial wastewater based on ferric-carbon micro-electrolysis activated persulfate | |
| CN107555701A (en) | Low-cost coking wastewater treatment method | |
| CN107417035A (en) | A Fenton-anaerobic treatment equipment and process based on iron recycling | |
| CN105461151A (en) | Landfill leachate treatment technology | |
| CN103395937A (en) | Processing device and processing method applicable to high-ammonia-nitrogen agricultural wastewater | |
| CN103539314A (en) | High-concentration degradation-resistant poisonous and harmful organic industrial wastewater treatment process and device | |
| CN102874957B (en) | The Method of Coagulation Oxidation and Resistance Reduction Method to Treat Pig Farm Manure Water | |
| CN101348314B (en) | Synergistic pretreatment of industrial wastewater by catalytic iron reduction and anaerobic hydrolysis acidification | |
| CN103224308A (en) | Ferrous ion reduction and catalytic oxidation cooperation for reinforcing waste water biological treatment technology | |
| CN103641230A (en) | Method for carrying out organic wastewater pretreatment by using an iron-carbon-Fenton-integrated reactor | |
| CN101519267B (en) | A combined treatment process for high-concentration organic wastewater | |
| CN101863592B (en) | Leachate treatment method for small town household refuse landfill sites | |
| Dai et al. | Investigation of a sewage-integrated technology combining an expanded granular sludge bed (EGSB) and an electrochemical reactor in a pilot-scale plant | |
| CN105366871A (en) | Processing method of landfill leachate | |
| CN101693581B (en) | Method of hydrolysis-catalytic iron-aerobic coupling for treating poisonous and harmful hard-degradation waste 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |