CN112340929A - Advanced treatment method of printing and dyeing wastewater - Google Patents

Advanced treatment method of printing and dyeing wastewater Download PDF

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Publication number
CN112340929A
CN112340929A CN202010282540.9A CN202010282540A CN112340929A CN 112340929 A CN112340929 A CN 112340929A CN 202010282540 A CN202010282540 A CN 202010282540A CN 112340929 A CN112340929 A CN 112340929A
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printing
liquid
water
dyeing wastewater
treatment method
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Inventor
林敏�
游淑洪
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Lianjiang Mingjie Information Technology Co ltd
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Lianjiang Mingjie Information Technology Co ltd
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Priority to CN202010282540.9A priority Critical patent/CN112340929A/en
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    • 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
    • C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
    • 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
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic 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
    • C02F2001/007—Processes including a sedimentation step
    • 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
    • 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

Abstract

The invention discloses an advanced treatment method of printing and dyeing wastewater, which comprises the following steps: firstly, carrying out biological aeration pretreatment operation on the printing and dyeing wastewater, discharging the water after a period of time, and carrying out medium filtration; stirring the wastewater after aeration treatment for a period of time, then adding a certain amount of coagulant and a slow-release agent, and rapidly fusing the coagulant by stirring; according to the invention, large-particle substances can be removed firstly by carrying out precipitation treatment before wastewater filtration, and the reaction rate can be effectively improved by matching with the catalyst, so that the problems that the part for filtration is easily blocked by the large-particle substances in the wastewater during the current wastewater treatment, the treatment speed is low during the reaction, and the wastewater treatment process is influenced are solved.

Description

Advanced treatment method of printing and dyeing wastewater
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to an advanced treatment method for printing and dyeing wastewater.
Background
The waste water discharged from printing and dyeing, wool-weaving dyeing and finishing, silk factories and the like mainly processing cotton, hemp, chemical fibers and blended products thereof and silk is different in fiber types and processing technologies, and the water quantity and water quality of the printing and dyeing waste water are different, wherein the waste water quantity of the printing and dyeing factory is large, 100-200 t of water is consumed for 1t of textile processed by printing and dyeing, 80-90% of the waste water is discharged as waste water, the printing and dyeing waste water has the characteristics of large water quantity, high organic pollutant content, large alkalinity, large water quality change and the like, belongs to one of industrial waste water difficult to treat, and contains dye, slurry, auxiliary agents, oiling agents, acid and alkali, fiber impurities, sand substances, inorganic salts and the like.
At present, when wastewater is treated, a part for filtering is easily blocked by large-particle substances in the wastewater, and the treatment speed is low when the reaction is carried out, so that the process of wastewater treatment is influenced.
SUMMARY OF THE PATENT FOR INVENTION
The invention aims to provide a method for deeply treating printing and dyeing wastewater, which has the advantage of realizing the pretreatment of the wastewater and solves the problems that the part for filtering is easily blocked by large granular substances in the wastewater during the current wastewater treatment, and the treatment speed is low during the reaction to influence the wastewater treatment process.
In order to achieve the purpose, the invention provides the following technical scheme: the advanced treatment method of the printing and dyeing wastewater comprises the following steps:
(1) primary treatment: firstly, carrying out biological aeration pretreatment operation on the printing and dyeing wastewater, discharging the water after a period of time, and carrying out medium filtration;
(2) and (3) precipitation: stirring the wastewater after aeration treatment for a period of time, then adding a certain amount of coagulant and a slow-release agent, and rapidly fusing the coagulant by stirring;
(3) liquid detection: in the wastewater after precipitation, sampling and detecting the supernatant liquid and the solid turbid substance at the lower layer, and repeating the precipitation reaction for several times until the supernatant liquid does not reach the standard;
(4) solid-liquid separation: after reaching the standard, the clear liquid on the upper layer is intensively discharged, then a certain amount of catalyst and oxidant are put into the clear liquid, and then the clear liquid is centrifuged in a centrifuge;
(5) and (4) final discharge: after a certain period of standing after the centrifugation operation, the liquid is then discharged to the outside through the membrane module.
Preferably, in the step (1), the aeration operation adopts micro-aeration, the aeration time is controlled within the range of 3-10h, the medium for filtering adopts quartz sand, activated carbon or fly ash, and the particle diameter of the medium is about 1 mm.
Preferably, in the step (2), the whole precipitation operation is carried out in a coagulating sedimentation tank, and the retention time of stirring is 1.5-2 h.
Preferably, in the step (2), the coagulant is a polymeric coagulant, specifically polyaluminium chloride, wherein the content of alumina is more than 10%, the alkalization degree is 50-80%, and the PH of the source water in the pond is controlled to be 5-9.
Preferably, in the step (2), when the coagulant is added, the agent is added into a water suction pipe of the water pump or a water suction bell mouth of the water suction well by using gravity, and is mixed by using a water pump impeller.
Preferably, in the step (3), when the liquid is sampled, a special liquid sampler is used for operation, and the liquid is sampled 5-10 times in different water areas, and then an average value is obtained as a reference standard.
Preferably, in the step (3), when the sampler is used, the bottom end of the sampler is extended into a position four fifths of the horizontal plane of the clear liquid for sampling, and the standard for judging that the water quality reaches the standard is the content of the turbid substances in the clear liquid.
Preferably, in the step (4), the catalyst to be charged contains solid Fe3O4/Fe2O3As heterogeneous catalyst, FeSO4As homogeneous reaction catalyst, the oxidant added is H2O2And its input concentration is 30%.
Preferably, in the step (4), the input amount of the oxidant accounts for 0.2-0.6 per mill of the total amount of the clear liquid, and the FeSO4The mass percentage of the input amount of the FeSO water-based cleaning agent in the clear liquid treatment water is 0.4-1.2 ‰, and the FeSO water-based cleaning agent is4The concentration of the prepared solution is 15%.
Preferably, in the step (5), the type of the membrane module is a hollow fiber type membrane module, and the membrane module is made of organic high molecular polymer, and the pH range of the membrane module is 2-10, and the temperature range of the membrane module is 5-45 ℃.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, large-particle substances can be removed firstly by carrying out precipitation treatment before wastewater filtration, and the reaction rate can be effectively improved by matching with the catalyst, so that the problems that the part for filtration is easily blocked by the large-particle substances in the wastewater during the current wastewater treatment, the treatment speed is low during the reaction, and the wastewater treatment process is influenced are solved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments in the present invention patent, and it is obvious that the described embodiments are only a part of the embodiments of the present invention patent, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the patent of the invention without any inventive work belong to the protection scope of the patent of the invention.
The advanced treatment method of the printing and dyeing wastewater comprises the following steps:
(1) primary treatment: firstly, carrying out biological aeration pretreatment operation on the printing and dyeing wastewater, discharging the water after a period of time, and carrying out medium filtration;
(2) and (3) precipitation: stirring the wastewater after aeration treatment for a period of time, then adding a certain amount of coagulant and a slow-release agent, and rapidly fusing the coagulant by stirring;
(3) liquid detection: in the wastewater after precipitation, sampling and detecting the supernatant liquid and the solid turbid substance at the lower layer, and repeating the precipitation reaction for several times until the supernatant liquid does not reach the standard;
(4) solid-liquid separation: after reaching the standard, the clear liquid on the upper layer is intensively discharged, then a certain amount of catalyst and oxidant are put into the clear liquid, and then the clear liquid is centrifuged in a centrifuge;
(5) and (4) final discharge: after a certain period of standing after the centrifugation operation, the liquid is then discharged to the outside through the membrane module.
The first embodiment is as follows:
the advanced treatment method of the printing and dyeing wastewater comprises the following steps:
(1) primary treatment: firstly, carrying out biological aeration pretreatment operation on printing and dyeing wastewater, discharging water after a period of time, and filtering media, wherein the aeration operation adopts micro aeration, the aeration time range is controlled to be 3-10h, the media used for filtering adopt quartz sand, active carbon or fly ash, and the particle diameter of the media is about 1 mm;
(2) and (3) precipitation: stirring the wastewater after aeration for a period of time, then adding a certain amount of coagulant and a slow-release agent, rapidly fusing the coagulant by stirring, carrying out the whole precipitation operation in a coagulating sedimentation tank, wherein the stirring retention time is 1.5-2h, the added coagulant is a high-molecular coagulant, specifically polyaluminium chloride, the content of aluminum oxide is more than 10%, the alkalization degree is 50-80%, the pH value of source water in the tank is controlled between 5-9, when the coagulant is added, the agent is added into a water suction pipe of a water pump or a water suction bell mouth of a water suction well by using gravity, and the agent is mixed by using a water pump impeller;
(3) liquid detection: in the wastewater after precipitation, sampling and detecting the supernatant liquid and the solid turbid substance at the lower layer, and repeating the precipitation reaction for several times until the supernatant liquid does not reach the standard;
(4) solid-liquid separation: after reaching the standard, the clear liquid on the upper layer is intensively discharged, then a certain amount of catalyst and oxidant are put into the clear liquid, and then the clear liquid is centrifuged in a centrifuge;
(5) and (4) final discharge: after a certain period of standing after the centrifugation operation, the liquid is then discharged to the outside through the membrane module.
Example two:
the advanced treatment method of the printing and dyeing wastewater comprises the following steps:
(1) primary treatment: firstly, carrying out biological aeration pretreatment operation on printing and dyeing wastewater, discharging water after a period of time, and filtering media, wherein the aeration operation adopts micro aeration, the aeration time range is controlled to be 3-10h, the media used for filtering adopt quartz sand, active carbon or fly ash, and the particle diameter of the media is about 1 mm;
(2) and (3) precipitation: stirring the wastewater after aeration for a period of time, then adding a certain amount of coagulant and a slow-release agent, rapidly fusing the coagulant by stirring, carrying out the whole precipitation operation in a coagulating sedimentation tank, wherein the stirring retention time is 1.5-2h, the added coagulant is a high-molecular coagulant, specifically polyaluminium chloride, the content of aluminum oxide is more than 10%, the alkalization degree is 50-80%, the pH value of source water in the tank is controlled between 5-9, when the coagulant is added, the agent is added into a water suction pipe of a water pump or a water suction bell mouth of a water suction well by using gravity, and the agent is mixed by using a water pump impeller;
(3) liquid detection: in the wastewater after precipitation, sampling and detecting the supernatant liquid which is positioned at the upper layer, if the supernatant liquid does not reach the standard, repeating the precipitation reaction operation for several times until the supernatant liquid reaches the standard, when sampling the liquid, operating by using a special liquid sampler, sampling 5-10 times in different water areas during sampling, then obtaining an average value as a reference standard, when using the sampler, deeply penetrating the bottom end of the sampler into a position four fifths below the horizontal plane of the supernatant liquid for sampling, and judging the standard of reaching the standard of water quality as the content of the turbid substances in the supernatant liquid;
(4) solid-liquid separation: after reaching the standard, the clear liquid on the upper layer is intensively discharged, then a certain amount of catalyst and oxidant are put into the clear liquid, and then the clear liquid is centrifuged in a centrifuge;
(5) and (4) final discharge: after a certain period of standing after the centrifugation operation, the liquid is then discharged to the outside through the membrane module.
Example three:
the advanced treatment method of the printing and dyeing wastewater comprises the following steps:
(1) primary treatment: firstly, carrying out biological aeration pretreatment operation on printing and dyeing wastewater, discharging water after a period of time, and filtering media, wherein the aeration operation adopts micro aeration, the aeration time range is controlled to be 3-10h, the media used for filtering adopt quartz sand, active carbon or fly ash, and the particle diameter of the media is about 1 mm;
(2) and (3) precipitation: stirring the wastewater after aeration for a period of time, then adding a certain amount of coagulant and a slow-release agent, rapidly fusing the coagulant by stirring, carrying out the whole precipitation operation in a coagulating sedimentation tank, wherein the stirring retention time is 1.5-2h, the added coagulant is a high-molecular coagulant, specifically polyaluminium chloride, the content of aluminum oxide is more than 10%, the alkalization degree is 50-80%, the pH value of source water in the tank is controlled between 5-9, when the coagulant is added, the agent is added into a water suction pipe of a water pump or a water suction bell mouth of a water suction well by using gravity, and the agent is mixed by using a water pump impeller;
(3) liquid detection: in the wastewater after precipitation, sampling and detecting the supernatant liquid which is positioned at the upper layer, if the supernatant liquid does not reach the standard, repeating the precipitation reaction operation for several times until the supernatant liquid reaches the standard, when sampling the liquid, operating by using a special liquid sampler, sampling 5-10 times in different water areas during sampling, then obtaining an average value as a reference standard, when using the sampler, deeply penetrating the bottom end of the sampler into a position four fifths below the horizontal plane of the supernatant liquid for sampling, and judging the standard of reaching the standard of water quality as the content of the turbid substances in the supernatant liquid;
(4) solid-liquid separation: discharging supernatant liquid, adding certain amount of catalyst and oxidant, and centrifuging in centrifuge, wherein the catalyst contains solid Fe3O4/Fe2O3As heterogeneous catalyst, FeSO4As homogeneous reaction catalyst, the oxidant added is H2O2The input concentration of the FeSO is 30 percent, the input amount of the oxidant accounts for 0.2 to 0.6 per mill of the total amount of the clear liquid, and the FeSO4The mass percentage of the input amount of the FeSO water-based cleaning agent in the clear liquid treatment water is 0.4-1.2 ‰, and the FeSO water-based cleaning agent is4The concentration of the prepared solution is 15 percent;
(5) and (4) final discharge: after a certain period of standing after the centrifugation operation, the liquid is then discharged to the outside through the membrane module.
Example four:
the advanced treatment method of the printing and dyeing wastewater comprises the following steps:
(1) primary treatment: firstly, carrying out biological aeration pretreatment operation on printing and dyeing wastewater, discharging water after a period of time, and filtering media, wherein the aeration operation adopts micro aeration, the aeration time range is controlled to be 3-10h, the media used for filtering adopt quartz sand, active carbon or fly ash, and the particle diameter of the media is about 1 mm;
(2) and (3) precipitation: stirring the wastewater after aeration for a period of time, then adding a certain amount of coagulant and a slow-release agent, rapidly fusing the coagulant by stirring, carrying out the whole precipitation operation in a coagulating sedimentation tank, wherein the stirring retention time is 1.5-2h, the added coagulant is a high-molecular coagulant, specifically polyaluminium chloride, the content of aluminum oxide is more than 10%, the alkalization degree is 50-80%, the pH value of source water in the tank is controlled between 5-9, when the coagulant is added, the agent is added into a water suction pipe of a water pump or a water suction bell mouth of a water suction well by using gravity, and the agent is mixed by using a water pump impeller;
(3) liquid detection: in the wastewater after precipitation, sampling and detecting the supernatant liquid which is positioned at the upper layer, if the supernatant liquid does not reach the standard, repeating the precipitation reaction operation for several times until the supernatant liquid reaches the standard, when sampling the liquid, operating by using a special liquid sampler, sampling 5-10 times in different water areas during sampling, then obtaining an average value as a reference standard, when using the sampler, deeply penetrating the bottom end of the sampler into a position four fifths below the horizontal plane of the supernatant liquid for sampling, and judging the standard of reaching the standard of water quality as the content of the turbid substances in the supernatant liquid;
(4) solid-liquid separation: discharging supernatant liquid, adding certain amount of catalyst and oxidant, and centrifuging in centrifuge, wherein the catalyst contains solid Fe3O4/Fe2O3As heterogeneous catalyst, FeSO4As homogeneous reaction catalyst, the oxidant added is H2O2The input concentration of the FeSO is 30 percent, the input amount of the oxidant accounts for 0.2 to 0.6 per mill of the total amount of the clear liquid, and the FeSO4The mass percentage of the input amount of the FeSO water-based cleaning agent in the clear liquid treatment water is 0.4-1.2 ‰, and the FeSO water-based cleaning agent is4The concentration of the prepared solution is 15 percent;
(5) and (4) final discharge: standing for a certain period of time after the centrifugal operation, and then discharging the liquid to the outside through a membrane module, wherein the type of the membrane module is a hollow fiber type membrane module, the membrane module is made of organic high molecular polymer, the pH range of the membrane module is 2-10, and the temperature range of the membrane module is 5-45 ℃.
According to the invention, large-particle substances can be removed firstly by carrying out precipitation treatment before wastewater filtration, and the reaction rate can be effectively improved by matching with the catalyst, so that the problems that the part for filtration is easily blocked by the large-particle substances in the wastewater during the current wastewater treatment, the treatment speed is low during the reaction, and the wastewater treatment process is influenced are solved.
Although embodiments of the present patent have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present patent, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The advanced treatment method of the printing and dyeing wastewater is characterized by comprising the following steps: the method comprises the following steps:
primary treatment: firstly, carrying out biological aeration pretreatment operation on the printing and dyeing wastewater, discharging the water after a period of time, and carrying out medium filtration;
and (3) precipitation: stirring the wastewater after aeration treatment for a period of time, then adding a certain amount of coagulant and a slow-release agent, and rapidly fusing the coagulant by stirring;
liquid detection: in the wastewater after precipitation, sampling and detecting the supernatant liquid and the solid turbid substance at the lower layer, and repeating the precipitation reaction for several times until the supernatant liquid does not reach the standard;
solid-liquid separation: after reaching the standard, the clear liquid on the upper layer is intensively discharged, then a certain amount of catalyst and oxidant are put into the clear liquid, and then the clear liquid is centrifuged in a centrifuge;
and (4) final discharge: after a certain period of standing after the centrifugation operation, the liquid is then discharged to the outside through the membrane module.
2. The advanced treatment method of printing and dyeing wastewater according to claim 1, characterized in that: in the step (1), the aeration operation adopts micro aeration, the aeration time range is controlled to be 3-10h, the medium for filtering adopts quartz sand, active carbon or fly ash, and the particle diameter of the medium is about 1 mm.
3. The advanced treatment method of printing and dyeing wastewater according to claim 1, characterized in that: in the step (2), the whole precipitation operation is carried out in a coagulating sedimentation tank, and the retention time of stirring is 1.5-2 h.
4. The advanced treatment method of printing and dyeing wastewater according to claim 1, characterized in that: in the step (2), the added coagulant is a high-molecular coagulant, specifically polyaluminium chloride, wherein the content of alumina is more than 10%, the alkalization degree is 50-80%, and the pH value of the source water in the pool is controlled to be 5-9.
5. The advanced treatment method of printing and dyeing wastewater according to claim 1, characterized in that: in the step (2), when the coagulant is added, the medicament is added into a water suction pipe of the water pump or a water suction bell mouth of the water suction well by using gravity, and is mixed by using a water pump impeller.
6. The advanced treatment method of printing and dyeing wastewater according to claim 1, characterized in that: in the step (3), when the liquid is sampled, a special liquid sampler is used for operation, and the liquid is sampled 5-10 times in different water areas, and then the average value is obtained as a reference standard.
7. The advanced treatment method of printing and dyeing wastewater according to claim 6, characterized in that: in the step (3), when the sampler is used, the bottom end of the sampler is extended into a position four fifths of the lower part of the horizontal plane of the clear liquid for sampling, and the standard for judging that the water quality reaches the standard is the content of the turbid substances in the clear liquid.
8. The advanced treatment method of printing and dyeing wastewater according to claim 1, characterized in that: in the step (4), the catalyst is added to the reactor with solid Fe3O4/Fe2O3As heterogeneous catalyst, FeSO4As homogeneous reaction catalyst, the oxidant added is H2O2And its input concentration is 30%.
9. The advanced treatment method of printing and dyeing wastewater according to claim 8, characterized in that: in the step (4), the input amount of the oxidant accounts for 0.2-0.6 per mill of the total amount of the clear liquid, and FeSO4The mass percentage of the input amount of the FeSO water-based cleaning agent in the clear liquid treatment water is 0.4-1.2 ‰, and the FeSO water-based cleaning agent is4The concentration of the prepared solution is 15%.
10. The advanced treatment method of printing and dyeing wastewater according to claim 1, characterized in that: in the step (5), the membrane module is a hollow fiber type membrane module and is made of organic high molecular polymer, the PH range of the membrane module is 2-10, and the use temperature range is 5-45 ℃.
CN202010282540.9A 2020-04-12 2020-04-12 Advanced treatment method of printing and dyeing wastewater Pending CN112340929A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101353215A (en) * 2008-08-29 2009-01-28 浙江大学 Dyeing waste water comprehensive processing and reclaiming process
CN104193119A (en) * 2014-09-25 2014-12-10 安徽江海环境工程有限公司 Process for deeply treating printing and dyeing wastewater in presence of attapulgite catalyst
CN106219821A (en) * 2016-08-30 2016-12-14 嘉兴赛维环保科技有限公司 One utilizes cellulose base integrated Fenton catalyst Fe3+c2o4the method of/R advanced treatment of dyeing wastewater
WO2019005718A1 (en) * 2017-06-26 2019-01-03 Monsanto Technology Llc Phosphorus control for waste streams from glyphosate manufacturing processes
CN109592861A (en) * 2019-01-31 2019-04-09 清华大学深圳研究生院 A kind of advanced treatment method for printing and dyeing wastewater and equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101353215A (en) * 2008-08-29 2009-01-28 浙江大学 Dyeing waste water comprehensive processing and reclaiming process
CN104193119A (en) * 2014-09-25 2014-12-10 安徽江海环境工程有限公司 Process for deeply treating printing and dyeing wastewater in presence of attapulgite catalyst
CN106219821A (en) * 2016-08-30 2016-12-14 嘉兴赛维环保科技有限公司 One utilizes cellulose base integrated Fenton catalyst Fe3+c2o4the method of/R advanced treatment of dyeing wastewater
WO2019005718A1 (en) * 2017-06-26 2019-01-03 Monsanto Technology Llc Phosphorus control for waste streams from glyphosate manufacturing processes
CN109592861A (en) * 2019-01-31 2019-04-09 清华大学深圳研究生院 A kind of advanced treatment method for printing and dyeing wastewater and equipment

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