CN113121048A - 一种精制棉废水处理及回用工艺 - Google Patents
一种精制棉废水处理及回用工艺 Download PDFInfo
- Publication number
- CN113121048A CN113121048A CN201911398902.4A CN201911398902A CN113121048A CN 113121048 A CN113121048 A CN 113121048A CN 201911398902 A CN201911398902 A CN 201911398902A CN 113121048 A CN113121048 A CN 113121048A
- Authority
- CN
- China
- Prior art keywords
- wastewater
- reverse osmosis
- filter device
- water
- purified cotton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 229920000742 Cotton Polymers 0.000 title claims abstract description 33
- 238000004064 recycling Methods 0.000 title claims abstract description 24
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 18
- 239000002351 wastewater Substances 0.000 claims abstract description 100
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 78
- 230000003647 oxidation Effects 0.000 claims abstract description 36
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 239000012528 membrane Substances 0.000 claims abstract description 22
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 17
- 238000001471 micro-filtration Methods 0.000 claims abstract description 17
- 239000006004 Quartz sand Substances 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000013505 freshwater Substances 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 230000001376 precipitating effect Effects 0.000 claims abstract description 6
- 238000001556 precipitation Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000002455 scale inhibitor Substances 0.000 claims description 18
- 239000012752 auxiliary agent Substances 0.000 claims description 16
- 239000007800 oxidant agent Substances 0.000 claims description 16
- 230000001590 oxidative effect Effects 0.000 claims description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 10
- 239000004155 Chlorine dioxide Substances 0.000 claims description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 5
- 229920000805 Polyaspartic acid Polymers 0.000 claims description 5
- 229920002125 Sokalan® Polymers 0.000 claims description 5
- KHSLHYAUZSPBIU-UHFFFAOYSA-M benzododecinium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 KHSLHYAUZSPBIU-UHFFFAOYSA-M 0.000 claims description 5
- OTPBAANTTKRERC-UHFFFAOYSA-N benzyl(dodecyl)azanium;chloride Chemical compound Cl.CCCCCCCCCCCCNCC1=CC=CC=C1 OTPBAANTTKRERC-UHFFFAOYSA-N 0.000 claims description 5
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 5
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 5
- 239000011790 ferrous sulphate Substances 0.000 claims description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical group [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 5
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000004584 polyacrylic acid Substances 0.000 claims description 5
- 108010064470 polyaspartate Proteins 0.000 claims description 5
- 229920001529 polyepoxysuccinic acid Polymers 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000011001 backwashing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 238000004061 bleaching Methods 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- AOJJSUZBOXZQNB-VTZDEGQISA-N 4'-epidoxorubicin Chemical group O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@@H](O)[C@H](C)O1 AOJJSUZBOXZQNB-VTZDEGQISA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- SEOVTRFCIGRIMH-UHFFFAOYSA-N indole-3-acetic acid Chemical group C1=CC=C2C(CC(=O)O)=CNC2=C1 SEOVTRFCIGRIMH-UHFFFAOYSA-N 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/29—Chlorine compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- 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)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
本发明公开了一种精制棉废水处理及回用工艺,其具体工艺步骤如下:a、精制棉废水进入氧化池内,搅拌反应1—1.5小时后,静置、沉淀,沉淀所分离的残渣收集并处理,氧化池中的上清液通入曝光池;b、废水在曝光池内阳光照射;c、废水经上述过程处理后,依次经过滤网、石英砂过滤器和活性炭过滤器对废水进行过滤;d、经微滤膜过滤,去除废水中的悬浮物及大分子杂质,此时废水中残留的多为小分子有机物与氯离子;e、依次通入一次反渗透过滤装置和二次反渗透过滤装置,本发明优点是:本工艺通过对不同的废水进行不同的处理,通过将二次反渗透淡水回用处理,COD去除80%以上,氯离子去除达95%以上,保证了废水回用质量,减少了精制棉废水的排放。
Description
技术领域
本发明涉及废水处理及回用工艺的技术领域,尤其是涉及精制棉的废水处理及回用工艺的技术领域。
背景技术
精制棉废水主要来自精制棉生产的蒸煮与漂白两个工序。蒸煮是将棉短绒进行脱脂,这个过程会产生大量含碱的废液,也称蒸煮黑液;漂白是将棉浆进行漂白、洗涤等处理,此处理过程会产生大量的漂洗废水。这两种废水统称为精制棉废水。
精制棉生产过程产生的废水量大,而且废水中有机物含量高。传统的精制棉废水处理方法主要以物化法与生物法相结合处理工艺,虽能达到GB9878-1996污水综合排放标准中一级排放标准,但由于废水中残留的溶解性有机物与大量的氯离子,会大幅降低产品聚合度和透光率。同时,对该废水进行再处理回用,处理回用成本很高,生产企业往往难以接受,导致精制棉生产废水长期得不到循环利用,高耗水、高排放,既增加了生产成本和废水治理成本,又影响了企业可持续发展。
发明内容
本发明为了解决上述技术之不足而提供一种成本较低、处理效果好的精制棉废水处理及回用工艺。
一种精制棉废水处理及回用工艺,其具体工艺步骤如下:
a、精制棉废水进入氧化池内,调节废水的PH值为3—4,向氧化池内添加氧化助剂和易分解的氧化剂,氧化助剂的添加浓度为3—5mol/m3,易分解的氧化剂的添加浓度为0.4—0.8mol/m3,搅拌反应1—1.5小时后,回调废水的pH值为9—11,静置、沉淀,沉淀所分离的残渣收集并处理,氧化池中的上清液通入曝光池;
b、废水在曝光池内阳光照射3—8小时,直至水中无明显气泡生成,达到去除废水中残留的易分解有机物目的;
c、废水经上述过程处理后,依次经过滤网、石英砂过滤器和活性炭过滤器对废水进行过滤;
d、将上述过滤后的废水通过加压泵调节废水压力至0.75—0.9MPa后,再经微滤膜过滤,去除废水中的悬浮物及大分子杂质,此时废水中残留的多为小分子有机物与氯离子;
e、经微滤膜过滤的废水添加阻垢剂后,依次通入一次反渗透过滤装置和二次反渗透过滤装置,除去废水中的氯离子和小分子有机物,一次反渗透过滤装置的浓水进入浓缩池,一次反渗透过滤装置的淡水进入二次反渗透过滤装置,二次反渗透过滤装置的浓水经加压泵后再次经微滤膜过滤,二次反渗透过滤装置的淡水即可回用,所述阻垢剂的添加浓度为10g-20g/m3。
所述氧化助剂为硫酸亚铁,所述易分解的氧化剂为双氧水、臭氧或二氧化氯。
所述一次反渗透过滤装置中浓淡出水比为1:4,二次反渗透过滤装置浓淡出水比为1:7。
所述阻垢剂由如下重量份材料构成:10-12份聚天冬氨酸、5-8份聚环氧琥珀酸、3-6份十二烷基苄基氯化铵、3-5份十二烷基二甲基苄基溴化铵和2-3份聚丙烯酸。
所述曝光池周围装有紫外线照射器。
所述石英砂过滤器、活性炭过滤器、一次反渗透过滤装置和二次反渗透过滤装置都装有反清洗系统。
本发明采用上述技术解决方案所能达到的有益效果是:
1、采用反渗透法用于精制棉废水的处理,较好的去除了废水的氯离子,使废水能够无影响的回用于精制棉的生产工艺。为了解决反渗透膜存在有机物污堵、微生物污染、化学结垢以及颗粒污堵等方面的问题,本工艺先通过氧化法作为反渗透处理的一项前处理工艺,使废水中的有机物降低、微生物死亡,再通过滤网、石英砂过滤器、活性炭过滤器和微滤膜减少后期反渗透过滤膜颗粒污堵问题,通过阻垢剂的复配减少化学结垢的影响,并通过在氧化池中添加易分解氧化物与曝光池降低废水中的强氧化剂对反渗透过滤膜的腐蚀与损耗,延长了反渗透过滤膜的使用寿命,稳定了反渗透过滤膜使用效果。
2、在氧化池中,通过调节pH,同时投加氧化助剂和易分解氧化剂,用于废水的氧化和杀菌处理,有效去除了废水中的微生物和有机物。
3、在曝光池中,通过紫外线照射器,再次去除了废水中残留的易分解有机物和微生物,减小了微生物在后续反渗透膜中生成菌落的可能性,降低造成反渗透微生物污堵可能性。同时还可阻止废水在后续处理过程中对一次反渗透装置和二次反渗透装置中反渗透膜的腐蚀。
4、本工艺中石英砂过滤器与活性炭过滤器都装有反清洗系统,防止使用时间过长石英砂过滤器与活性炭过滤器堵塞与处理效果变差。
5、本工艺采用新型阻垢剂的复配,与传统的阻垢剂相比,新型阻垢剂对环境污染小,安全环保,且易于分解,更便于反渗透浓水的处理。同时,可有效防止废水中的Ca2+、Mg2+等无机金属离子在反渗透膜上结垢,影响反渗透过滤装置的处理效果。
6、本工艺中废水经最后的一次反渗透过滤装置和二次反渗透过滤装置处理后,有效去除了废水中氯离子和小分子有机物,最终达到了回用的目的。
7、本工艺通过对不同的废水进行不同的处理,通过将二次反渗透淡水回用处理,COD去除80%以上,氯离子去除达95%以上,保证了废水回用质量,通过二次反渗透浓水循环反渗透减少水资源浪费,通过将一次反渗透浓废水浓缩,减少了精制棉废水的排放。
附图说明
图1为本发明的工艺流程示意图。
具体实施方式
下面结合附图与具体实施方式对本发明作进一步详细描述。
实施例1:
一种精制棉废水处理及回用工艺,其具体工艺步骤如下:
a、精制棉废水进入氧化池内,调节废水的PH值为3,向氧化池内添加氧化助剂和易分解的氧化剂,所述氧化助剂为硫酸亚铁,所述易分解的氧化剂为双氧水、臭氧或二氧化氯,氧化助剂的添加浓度为3mol/m3,易分解的氧化剂的添加浓度为0.4mol/m3,搅拌反应1小时后,回调废水的pH值为9,静置、沉淀,沉淀所分离的残渣收集并处理,氧化池中的上清液通入曝光池;
b、废水在曝光池内阳光照射3小时,直至水中无明显气泡生成,达到去除废水中残留的易分解有机物目的,在所述曝光池周围还可装有紫外线照射器;
c、废水经上述过程处理后,依次经过滤网、石英砂过滤器和活性炭过滤器对废水进行过滤,所述石英砂过滤器和活性炭过滤器都装有反清洗系统;
d、将上述过滤后的废水通过加压泵调节废水压力至0.75MPa后,再经微滤膜过滤,去除废水中的悬浮物及大分子杂质,此时废水中残留的多为小分子有机物与氯离子;
e、经微滤膜过滤的废水添加阻垢剂后,依次通入一次反渗透过滤装置和二次反渗透过滤装置,除去废水中的氯离子和小分子有机物,一次反渗透过滤装置的浓水进入浓缩池,一次反渗透过滤装置的淡水进入二次反渗透过滤装置,所述一次反渗透过滤装置中浓淡出水比为1:4,二次反渗透过滤装置的浓水经加压泵后再次经微滤膜过滤,二次反渗透过滤装置的淡水即可回用,所述二次反渗透过滤装置浓淡出水比为1:7,所述阻垢剂由如下重量份材料构成:10份聚天冬氨酸、5份聚环氧琥珀酸、3份十二烷基苄基氯化铵、3份十二烷基二甲基苄基溴化铵和2份聚丙烯酸,所述阻垢剂的添加浓度为10g/m3,所述一次反渗透过滤装置和二次反渗透过滤装置都装有反清洗系统。
实施例2:
一种精制棉废水处理及回用工艺,其具体工艺步骤如下:
a、精制棉废水进入氧化池内,调节废水的PH值为4,向氧化池内添加氧化助剂和易分解的氧化剂,所述氧化助剂为硫酸亚铁,所述易分解的氧化剂为双氧水、臭氧或二氧化氯,氧化助剂的添加浓度为5mol/m3,易分解的氧化剂的添加浓度为0.8mol/m3,搅拌反应1.5小时后,回调废水的pH值为11,静置、沉淀,沉淀所分离的残渣收集并处理,氧化池中的上清液通入曝光池;
b、废水在曝光池内阳光照射8小时,直至水中无明显气泡生成,达到去除废水中残留的易分解有机物目的,在所述曝光池周围还可装有紫外线照射器;
c、废水经上述过程处理后,依次经过滤网、石英砂过滤器和活性炭过滤器对废水进行过滤,所述石英砂过滤器和活性炭过滤器都装有反清洗系统;
d、将上述过滤后的废水通过加压泵调节废水压力至0.9MPa后,再经微滤膜过滤,去除废水中的悬浮物及大分子杂质,此时废水中残留的多为小分子有机物与氯离子;
e、经微滤膜过滤的废水添加阻垢剂后,依次通入一次反渗透过滤装置和二次反渗透过滤装置,除去废水中的氯离子和小分子有机物,一次反渗透过滤装置的浓水进入浓缩池,一次反渗透过滤装置的淡水进入二次反渗透过滤装置,所述一次反渗透过滤装置中浓淡出水比为1:4,二次反渗透过滤装置的浓水经加压泵后再次经微滤膜过滤,二次反渗透过滤装置的淡水即可回用,所述二次反渗透过滤装置浓淡出水比为1:7,所述阻垢剂由如下重量份材料构成:12份聚天冬氨酸、8份聚环氧琥珀酸、6份十二烷基苄基氯化铵、5份十二烷基二甲基苄基溴化铵和3份聚丙烯酸,所述阻垢剂的添加浓度为20g/m3,所述一次反渗透过滤装置和二次反渗透过滤装置都装有反清洗系统。
实施例3:
一种精制棉废水处理及回用工艺,其具体工艺步骤如下:
a、精制棉废水进入氧化池内,调节废水的PH值为3.6,向氧化池内添加氧化助剂和易分解的氧化剂,所述氧化助剂为硫酸亚铁,所述易分解的氧化剂为双氧水、臭氧或二氧化氯,氧化助剂的添加浓度为4mol/m3,易分解的氧化剂的添加浓度为0.65mol/m3,搅拌反应1.3小时后,回调废水的pH值为10.5,静置、沉淀,沉淀所分离的残渣收集并处理,氧化池中的上清液通入曝光池;
b、废水在曝光池内阳光照射6.8小时,直至水中无明显气泡生成,达到去除废水中残留的易分解有机物目的,在所述曝光池周围还可装有紫外线照射器;
c、废水经上述过程处理后,依次经过滤网、石英砂过滤器和活性炭过滤器对废水进行过滤,所述石英砂过滤器和活性炭过滤器都装有反清洗系统;
d、将上述过滤后的废水通过加压泵调节废水压力至0.85MPa后,再经微滤膜过滤,去除废水中的悬浮物及大分子杂质,此时废水中残留的多为小分子有机物与氯离子;
e、经微滤膜过滤的废水添加阻垢剂后,依次通入一次反渗透过滤装置和二次反渗透过滤装置,除去废水中的氯离子和小分子有机物,一次反渗透过滤装置的浓水进入浓缩池,一次反渗透过滤装置的淡水进入二次反渗透过滤装置,所述一次反渗透过滤装置中浓淡出水比为1:4,二次反渗透过滤装置的浓水经加压泵后再次经微滤膜过滤,二次反渗透过滤装置的淡水即可回用,所述二次反渗透过滤装置浓淡出水比为1:7,所述阻垢剂由如下重量份材料构成:11份聚天冬氨酸、7.6份聚环氧琥珀酸、5份十二烷基苄基氯化铵、4份十二烷基二甲基苄基溴化铵和2.5份聚丙烯酸,所述阻垢剂的添加浓度为15g/m3,所述一次反渗透过滤装置和二次反渗透过滤装置都装有反清洗系统。
其废水具体运行数据为:
根据以上数据可得,经过处理后的废水氯离子降低到20mg/L以下,去除率达到95%以上,COD降低为30mg/L以下,去除率高达80%以上。
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,虽然本发明已以较佳实施例揭露如上,然而并非用以限定本发明,任何熟悉本专业的技术人员,在不脱离本发明技术方案范围内,当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。
Claims (6)
1.一种精制棉废水处理及回用工艺,其特征在于其具体工艺步骤如下:
a、精制棉废水进入氧化池内,调节废水的PH值为3—4,向氧化池内添加氧化助剂和易分解的氧化剂,氧化助剂的添加浓度为3—5mol/m3,易分解的氧化剂的添加浓度为0.4—0.8mol/m3,搅拌反应1—1.5小时后,回调废水的pH值为9—11,静置、沉淀,沉淀所分离的残渣收集并处理,氧化池中的上清液通入曝光池;
b、废水在曝光池内阳光照射3—8小时,直至水中无明显气泡生成,达到去除废水中残留的易分解有机物目的;
c、废水经上述过程处理后,依次经过滤网、石英砂过滤器和活性炭过滤器对废水进行过滤;
d、将上述过滤后的废水通过加压泵调节废水压力至0.75—0.9MPa后,再经微滤膜过滤,去除废水中的悬浮物及大分子杂质,此时废水中残留的多为小分子有机物与氯离子;
e、经微滤膜过滤的废水添加阻垢剂后,依次通入一次反渗透过滤装置和二次反渗透过滤装置,除去废水中的氯离子和小分子有机物,一次反渗透过滤装置的浓水进入浓缩池,一次反渗透过滤装置的淡水进入二次反渗透过滤装置,二次反渗透过滤装置的浓水经加压泵后再次经微滤膜过滤,二次反渗透过滤装置的淡水即可回用,所述阻垢剂的添加浓度为10g-20g/m3。
2.根据权利要求1所述的一种精制棉废水处理及回用工艺,其特征在于:所述氧化助剂为硫酸亚铁,所述易分解的氧化剂为双氧水、臭氧或二氧化氯。
3.根据权利要求1所述的一种精制棉废水处理及回用工艺,其特征在于:所述一次反渗透过滤装置中浓淡出水比为1:4,二次反渗透过滤装置浓淡出水比为1:7。
4.根据权利要求1所述的一种精制棉废水处理及回用工艺,其特征在于:所述阻垢剂由如下重量份材料构成:10-12份聚天冬氨酸、5-8份聚环氧琥珀酸、3-6份十二烷基苄基氯化铵、3-5份十二烷基二甲基苄基溴化铵和2-3份聚丙烯酸。
5.根据权利要求1所述的一种精制棉废水处理及回用工艺,其特征在于:所述曝光池周围装有紫外线照射器。
6.根据权利要求1、2、3、4或5所述的一种精制棉废水处理及回用工艺,其特征在于:所述石英砂过滤器、活性炭过滤器、一次反渗透过滤装置和二次反渗透过滤装置都装有反清洗系统。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911398902.4A CN113121048B (zh) | 2019-12-30 | 2019-12-30 | 一种精制棉废水处理及回用工艺 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911398902.4A CN113121048B (zh) | 2019-12-30 | 2019-12-30 | 一种精制棉废水处理及回用工艺 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113121048A true CN113121048A (zh) | 2021-07-16 |
CN113121048B CN113121048B (zh) | 2023-10-20 |
Family
ID=76768419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911398902.4A Active CN113121048B (zh) | 2019-12-30 | 2019-12-30 | 一种精制棉废水处理及回用工艺 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113121048B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114275950A (zh) * | 2021-11-25 | 2022-04-05 | 湖北金汉江精制棉有限公司 | 一种精制棉黑液高效降解的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN208279434U (zh) * | 2018-04-28 | 2018-12-25 | 东莞泰山电子有限公司 | Pcb废水处理回用系统 |
CN110563223A (zh) * | 2018-07-06 | 2019-12-13 | 中石化石油工程技术服务有限公司 | 一种处理高含硫气田采出水中难降解cod的工艺方法 |
CN110563226A (zh) * | 2019-09-16 | 2019-12-13 | 安徽欧美林实验设备科技有限公司 | 一种节水型实验室给排水系统 |
-
2019
- 2019-12-30 CN CN201911398902.4A patent/CN113121048B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN208279434U (zh) * | 2018-04-28 | 2018-12-25 | 东莞泰山电子有限公司 | Pcb废水处理回用系统 |
CN110563223A (zh) * | 2018-07-06 | 2019-12-13 | 中石化石油工程技术服务有限公司 | 一种处理高含硫气田采出水中难降解cod的工艺方法 |
CN110563226A (zh) * | 2019-09-16 | 2019-12-13 | 安徽欧美林实验设备科技有限公司 | 一种节水型实验室给排水系统 |
Non-Patent Citations (4)
Title |
---|
乔淇;何强;冉春秋;: "精制棉废水处理技术进展研究", 环境科学与管理, no. 12, pages 109 - 112 * |
孟庆华;鲁玲;朱亦仁;李爱梅;于昕;: "日光辐照H_2O_2-草酸铁氧化法处理棉浆粕废水", 化工环保, no. 04, pages 10 - 12 * |
水的科学与健康: "水的科学与健康", 复旦大学出版社, pages: 142 * |
鲁玲;朱亦仁;李爱梅;于昕;张施;解恒参;: "FeSO_4/H_2O_2/UV体系处理化纤厂棉浆粕黑液的研究", 工业安全与环保, no. 04, pages 339 - 343 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114275950A (zh) * | 2021-11-25 | 2022-04-05 | 湖北金汉江精制棉有限公司 | 一种精制棉黑液高效降解的方法 |
CN114275950B (zh) * | 2021-11-25 | 2023-10-20 | 湖北金汉江精制棉有限公司 | 一种精制棉黑液高效降解的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN113121048B (zh) | 2023-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107253798B (zh) | 一种钢铁工业废水的深度处理回用组合工艺 | |
CN101857328B (zh) | 一种纺织印染废水资源化的方法及其装置与应用 | |
CN107261854B (zh) | 一种用于渗滤液处理工艺中的膜的清洗方法 | |
CN112174412A (zh) | 一种高含盐废水中水回用方法 | |
KR101205197B1 (ko) | 높은 회수율의 공업용수를 얻기 위한 재이용수 생산방법 | |
JP2017113729A (ja) | 膜洗浄剤、膜洗浄液及び膜の洗浄方法 | |
CN109824183A (zh) | 一种高盐高浓度有机废液零排放高效处理工艺 | |
CN103193335A (zh) | 一种氧化聚硅铁与超滤膜联合的饮用水处理方法 | |
CN105481141A (zh) | 一种中水回用装置中对反渗透浓盐水进行再浓缩回用的方法 | |
WO2019029034A1 (zh) | 中等浓度有机工业废水的处理工艺 | |
CN113121048A (zh) | 一种精制棉废水处理及回用工艺 | |
CN112723658A (zh) | 一种废纸再生造纸废水处理工艺 | |
CN112028273A (zh) | 一种高回收率中水回用深度处理系统及处理方法 | |
CN109775899A (zh) | 一种不锈钢酸洗废水中镍的回收方法 | |
CN215102340U (zh) | 一种煤化工高盐废水低成本资源化处理系统 | |
CN105174567A (zh) | 一种重金属废水处理和回收系统及方法 | |
CN211419839U (zh) | 一种工业循环水排水回用处理装置 | |
TWI715974B (zh) | 工業廢水中去除氯鹽的方法及設備 | |
WO2018040223A1 (zh) | 提高镍锌电镀漂洗废水在线资源化膜法闭合系统效率的简便方法 | |
CN110104839A (zh) | 一种用于工业废水反渗透浓水预处理系统及其方法 | |
CN112794472A (zh) | 一种高盐废水的浓缩系统及浓缩方法 | |
CN101891325A (zh) | 化学氧化与双膜法联合处理回用水方法 | |
CN104787973A (zh) | 一种中水水源循环水排污水回用系统 | |
CN112028368B (zh) | 一种氯化钛白粉生产废盐酸和废盐水的处理系统及方法 | |
CN112437755A (zh) | 利用反渗透的废水再利用方法及装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |