CN106007119A - Method for treating city sewage - Google Patents

Method for treating city sewage Download PDF

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Publication number
CN106007119A
CN106007119A CN201610387609.8A CN201610387609A CN106007119A CN 106007119 A CN106007119 A CN 106007119A CN 201610387609 A CN201610387609 A CN 201610387609A CN 106007119 A CN106007119 A CN 106007119A
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parts
sewage
municipal sewage
resin
flocculant
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CN201610387609.8A
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Chinese (zh)
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陈昌
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陈昌
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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
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/285Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • 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
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • 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
    • C02F1/34Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • 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
    • 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
    • C02F1/5263Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
    • 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
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • 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
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • 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
    • C02F1/58Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62Heavy metal compounds
    • 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
    • C02F2001/425Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

Abstract

The invention discloses a method for treating city sewage; a composite sewage treatment agent with a corn starch-acrylamide grafted copolymer, carboxymethyl chitosan, a soybean protein extract, ferric trichloride, ethoxy quinoline, benzoyl peroxide, sodium cyclamate, polylactic acid, butyl p-hydroxybenzoate, (1-hydroxyethylene)diphosphonic acid, a liquorice extract and allantoin as the formula undergoes a stirring reaction with sewage, then the treated sewage is subjected to ultrasonic treatment, passes through an ion exchange column and is eluted and is subjected to stirring flocculation and sedimentation with a flocculant, the flocculated supernatant passes through adsorption resin, filter treatment is performed with a membrane filter, sterilization treatment is performed, and the treated water up to discharge standards is obtained. The method has high efficiency of sewage treatment, and the discharged treated water can reach the national standards; at the same time, the method has the advantages of simple and feasible technology, high operability, and no pollution to the environment, can meet the requirements of the industry, and has a relatively good application prospect.

Description

The processing method of municipal sewage

Technical field

The present invention relates to technical field of sewage, particularly to the processing method of a kind of municipal sewage.

Background technology

Water is Source of life, is the most valuable resource of nature.The protection of water resource, utilize and process is in the world today One of the most popular topic, therefore, the research work about water quality and water technology develops quickly, from Industry Waste in the world The pollution of water and sanitary wastewater is also the significant problem that country faces.China is one of country that water resource lacks in the world, water The exploitation of matter and water technology has the biggest development, protects environmental conservation, water saving water and is made that the biggest contribution, but show rank The sewage disposal technology of section is compared with developed country still bigger gap.Present Domestic water technology and water process market Still it is full of by numerous and jumbled harmful scheme and method.So the grinding of high-quality, efficient, inexpensive, safe and nontoxic method for treating water Studying carefully and developing with application is the big problem that world is paid close attention to jointly.

In recent years, the rate of economic development in China city is relatively fast, and produce in city and live the sewage quantity produced Also gradually increasing, compared with developed countries, China's treatment rate of domestic sewage is the highest, and technique need perfect, management The most relatively backward, it is the most backward that sewage treatment facility also hands over developed countries to compare.So for the problems referred to above, exploring city The process problem of sewage, improves municipal sewage treatment efficiency, makes the process water of eliminating reach standard-required, improves the production in city And quality of the life, this problem need solve.

Summary of the invention

For solving above-mentioned technical problem, the present invention provides the processing method of a kind of municipal sewage, by using specified raw material It is combined, coordinates corresponding production technology, obtained the processing method of new and improved municipal sewage, sewage treating efficiency Height, the process water of eliminating all can reach national standard, the most simple for process, workable, and environmentally safe, energy Enough meet the requirement of industry, there is preferable application prospect.

The purpose of the present invention can be achieved through the following technical solutions:

The processing method of a kind of municipal sewage, comprises the following steps:

(1) preparation compound sewage inorganic agent, concrete formula is: corn starch-acrylamide grafted copolymer 3-9 part, carboxymethyl Chitosan 5-15 part, soybean protein extract 3-12 part, ferric chloride 6-17 part, ethoxy quinoline 5-9 part, benzoyl peroxide 3-13 part, sodium cyclohexyl sulfamate 4-16 part, polylactic acid 5-12 part, Butyl Chemosept 4-9 part, 1-hydroxy ethylidene-1,1-diphosphonic acid 6-20 part, Radix Glycyrrhizae extract 5-10 part, allantoin 2-9 part;

(2) in municipal sewage add mass ratio be 0.7% compound sewage inorganic agent, mechanical agitation 20-25 minute, obtain through The municipal sewage of pretreatment;

(3) the pretreated municipal sewage of gained being carried out supersound process, ultrasonic power is 1500-1700w, and ultrasonic time is 40-50min, then stands 25 minutes, through filtration treatment, obtains clarifying contaminated liquids liquid;

(4) by clarifying contaminated liquids liquid by D113 cation exchange resin, applied sample amount and resin quality ratio is for 9:1, and loading flow velocity is 1.2BV/h-1.5BV/h, the most again by D401 chelating ion exchange resin, applied sample amount and resin quality ratio is for 7:1, loading Flow velocity is 0.3BV/h-0.8BV/h;

(5) in the clarifying contaminated liquids liquid of resin absorption add mass ratio be the flocculant of 0.5%, mechanical agitation 5-15 minute, Then 3-4 hour is stood, wherein the consisting of of flocculant: aluminium polychlorid 8-10 part, iron sulfate 8-10 part, sodium polyacrylate 5- 7 parts, ligninsulfonate 3-5 part, mucopolysaccharide 2-5 part, catechin 1-3 part;

(6) by the supernatant through flocculation sediment gained by AB-8 macroporous adsorbent resin, applied sample amount and resin quality ratio for 9:1, Loading flow velocity is 1.9-2.2BV/h;

(7) after the supernatant through macroporous resin adsorption carries out filtration treatment by film filter, more sterilized process, must reach The process water of discharge standard.

Preferably, the power of step (3) supersound process is 1650w, and ultrasonic time is 45 minutes.

Preferably, step (4) flocculant consist of aluminium polychlorid 10 parts, 8 parts of iron sulfate, sodium polyacrylate 7 parts, wood 5 parts of matter sulfonate, mucopolysaccharide 3 parts, catechin 2 parts.

Preferably, step (7) sterilization process uses sewage ultraviolet sterilizer, and uviol lamp power is 300w, processes Time is 60 seconds.

Compared with prior art, it has the beneficial effect that the present invention

(1) processing method of the municipal sewage of the present invention mainly applies the compound sewage inorganic agent of special formula with sewage stirring instead Should, through supersound process, ion exchange column crosses post eluting, flocculant stirring flocculation sediment, and flocculation supernatant crosses post adsorbent resin, Film filter filtration treatment, sterilization treatment, obtain the process water of discharge standard.Sewage water treatment method for above-mentioned optimization technique The process water obtained, sewage treating efficiency is high, and the process water of eliminating all can reach national standard, the most simple for process, can Strong operability, and environmentally safe, it is possible to meet the requirement of industry, have preferable application prospect.

(2) used by the processing method of the municipal sewage of the present invention, inorganic agent cheaper starting materials, technique simply, are suitable to extensive work Industryization is used, practical.

Detailed description of the invention

Below in conjunction with specific embodiment, the technical scheme of invention is described in detail.

Embodiment 1

(1) preparation compound sewage inorganic agent, concrete formula is: corn starch-acrylamide grafted copolymer 3 parts, carboxymethyl shell Polysaccharide 5 parts, soybean protein extract 3 parts, ferric chloride 6 parts, ethoxy quinoline 5 parts, benzoyl peroxide 3 parts, cyclohexyl ammonia Base sodium sulfonate 4 parts, polylactic acid 5 parts, Butyl Chemosept 4 parts, 1-hydroxy ethylidene-1,1-diphosphonic acid 6 parts, Radix Glycyrrhizae extract 5-part, allantois Element 2 parts;

(2) in municipal sewage, add the compound sewage inorganic agent that mass ratio is 0.7%, mechanical agitation 20 minutes, obtain through pre-place The municipal sewage of reason;

(3) the pretreated municipal sewage of gained being carried out supersound process, ultrasonic power is 1650w, and ultrasonic time is 45min, then stands 25 minutes, through filtration treatment, obtains clarifying contaminated liquids liquid;

(4) by clarifying contaminated liquids liquid by D113 cation exchange resin, applied sample amount and resin quality ratio is for 9:1, and loading flow velocity is 1.2BV/h, the most again by D401 chelating ion exchange resin, applied sample amount and resin quality ratio is for 7:1, and loading flow velocity is 0.3BV/h;

(5) in the clarifying contaminated liquids liquid of resin absorption add mass ratio be the flocculant of 0.5%, mechanical agitation 5 minutes, so Rear standing 3 hours, wherein the consisting of of flocculant: aluminium polychlorid 10 parts, 8 parts of iron sulfate, sodium polyacrylate 7 parts, wooden sulphur Hydrochlorate 5 parts, mucopolysaccharide 3 parts, catechin 2 parts;

(6) by the supernatant through flocculation sediment gained by AB-8 macroporous adsorbent resin, applied sample amount and resin quality ratio for 9:1, Loading flow velocity is 1.9BV/h;

(7) after the supernatant through macroporous resin adsorption carries out filtration treatment by film filter, then through sewage ultraviolet sterilizer Sterilization treatment, must reach the process water of discharge standard, and uviol lamp power is 300w, and the process time is 60 seconds.

The process water indices test result of discharge is as shown in table 1.

Embodiment 2

(1) preparation compound sewage inorganic agent, concrete formula is: corn starch-acrylamide grafted copolymer 5 parts, carboxymethyl shell Polysaccharide 7 parts, soybean protein extract 6 parts, ferric chloride 8 parts, ethoxy quinoline 6 parts, benzoyl peroxide 5 parts, cyclohexyl ammonia Base sodium sulfonate 7 parts, polylactic acid 8 parts, Butyl Chemosept 5 parts, 1-hydroxy ethylidene-1,1-diphosphonic acid 9 parts, Radix Glycyrrhizae extract 6 parts, allantois Element 4 parts;

(2) in municipal sewage, add the compound sewage inorganic agent that mass ratio is 0.7%, mechanical agitation 22 minutes, obtain through pre-place The municipal sewage of reason;

(3) the pretreated municipal sewage of gained being carried out supersound process, ultrasonic power is 1650w, and ultrasonic time is 45min, then stands 25 minutes, through filtration treatment, obtains clarifying contaminated liquids liquid;

(4) by clarifying contaminated liquids liquid by D113 cation exchange resin, applied sample amount and resin quality ratio is for 9:1, and loading flow velocity is 1.3BV/h, the most again by D401 chelating ion exchange resin, applied sample amount and resin quality ratio is for 7:1, and loading flow velocity is 0.4BV/h;

(5) in the clarifying contaminated liquids liquid of resin absorption add mass ratio be the flocculant of 0.5%, mechanical agitation 8 minutes, so Rear standing 3.3 hours, wherein the consisting of of flocculant: aluminium polychlorid 10 parts, 8 parts of iron sulfate, sodium polyacrylate 7 parts, wooden 5 parts of sulfonate, mucopolysaccharide 3 parts, catechin 2 parts;

(6) by the supernatant through flocculation sediment gained by AB-8 macroporous adsorbent resin, applied sample amount and resin quality ratio for 9:1, Loading flow velocity is 2.0BV/h;

(7) after the supernatant through macroporous resin adsorption carries out filtration treatment by film filter, then through sewage ultraviolet sterilizer Sterilization treatment, must reach the process water of discharge standard, and uviol lamp power is 300w, and the process time is 60 seconds.

The process water indices test result of discharge is as shown in table 1.

Embodiment 3

((1) preparation compound sewage inorganic agent, concrete formula is: corn starch-acrylamide grafted copolymer 7 parts, carboxymethyl shell Polysaccharide 10 parts, soybean protein extract 9 parts, ferric chloride 13 parts, ethoxy quinoline 8 parts, benzoyl peroxide 11 parts, cyclohexyl 13 parts of sulfamic acid sodium, polylactic acid 10 parts, Butyl Chemosept 7 parts, 1-hydroxy ethylidene-1,1-diphosphonic acid 14 parts, Radix Glycyrrhizae extract 7 parts, Allantoin 8 parts;

(2) in municipal sewage, add the compound sewage inorganic agent that mass ratio is 0.7%, mechanical agitation 24 minutes, obtain through pre-place The municipal sewage of reason;

(3) the pretreated municipal sewage of gained being carried out supersound process, ultrasonic power is 1650w, and ultrasonic time is 45min, then stands 25 minutes, through filtration treatment, obtains clarifying contaminated liquids liquid;

(4) by clarifying contaminated liquids liquid by D113 cation exchange resin, applied sample amount and resin quality ratio is for 9:1, and loading flow velocity is 1.4BV/h, the most again by D401 chelating ion exchange resin, applied sample amount and resin quality ratio is for 7:1, and loading flow velocity is 0.6BV/h;

(5) in the clarifying contaminated liquids liquid of resin absorption add mass ratio be the flocculant of 0.5%, mechanical agitation 12 minutes, so Rear standing 3.6 hours, wherein the consisting of of flocculant: aluminium polychlorid 10 parts, 8 parts of iron sulfate, sodium polyacrylate 7 parts, wooden 5 parts of sulfonate, mucopolysaccharide 3 parts, catechin 2 parts;

(6) by the supernatant through flocculation sediment gained by AB-8 macroporous adsorbent resin, applied sample amount and resin quality ratio for 9:1, Loading flow velocity is 2.1BV/h;

(7) after the supernatant through macroporous resin adsorption carries out filtration treatment by film filter, then through sewage ultraviolet sterilizer Sterilization treatment, must reach the process water of discharge standard, and uviol lamp power is 300w, and the process time is 60 seconds.

The process water indices test result of discharge is as shown in table 1.

Embodiment 4

(1) preparation compound sewage inorganic agent, concrete formula is: corn starch-acrylamide grafted copolymer 9 parts, carboxymethyl shell Polysaccharide 15 parts, soybean protein extract 12 parts, ferric chloride 17 parts, ethoxy quinoline 9 parts, benzoyl peroxide 13 parts, ring are 16 parts of base sulfamic acid sodium, polylactic acid 12 parts, Butyl Chemosept 9 parts, 1-hydroxy ethylidene-1,1-diphosphonic acid 20 parts, Radix Glycyrrhizae extract 10 Part, allantoin 9 parts;

(2) in municipal sewage, add the compound sewage inorganic agent that mass ratio is 0.7%, mechanical agitation 25 minutes, obtain through pre-place The municipal sewage of reason;

(3) the pretreated municipal sewage of gained being carried out supersound process, ultrasonic power is 1650w, and ultrasonic time is 45min, then stands 25 minutes, through filtration treatment, obtains clarifying contaminated liquids liquid;

(4) by clarifying contaminated liquids liquid by D113 cation exchange resin, applied sample amount and resin quality ratio is for 9:1, and loading flow velocity is 1.5BV/h, the most again by D401 chelating ion exchange resin, applied sample amount and resin quality ratio is for 7:1, and loading flow velocity is 0.8BV/h;

(5) in the clarifying contaminated liquids liquid of resin absorption add mass ratio be the flocculant of 0.5%, mechanical agitation 15 minutes, so Rear standing 4 hours, wherein the consisting of of flocculant: aluminium polychlorid 10 parts, 8 parts of iron sulfate, sodium polyacrylate 7 parts, wooden sulphur Hydrochlorate 5 parts, mucopolysaccharide 3 parts, catechin 2 parts;

(6) by the supernatant through flocculation sediment gained by AB-8 macroporous adsorbent resin, applied sample amount and resin quality ratio for 9:1, Loading flow velocity is 2.2BV/h;

(7) after the supernatant through macroporous resin adsorption carries out filtration treatment by film filter, then through sewage ultraviolet sterilizer Sterilization treatment, must reach the process water of discharge standard, and uviol lamp power is 300w, and the process time is 60 seconds.

The process water indices test result of discharge is as shown in table 1.

Comparative example 1

(1) preparation compound sewage inorganic agent, concrete formula is: carboxymethyl chitosan 5 parts, ferric chloride 6 parts, ethoxy quinoline 5 Part, sodium cyclohexyl sulfamate 4 parts, polylactic acid 5 parts, Butyl Chemosept 4 parts, 1-hydroxy ethylidene-1,1-diphosphonic acid 6 parts, Radix Glycyrrhizae are extracted Thing 5-part, allantoin 2 parts;

(2) in municipal sewage, add the compound sewage inorganic agent that mass ratio is 0.7%, mechanical agitation 20 minutes, obtain through pre-place The municipal sewage of reason;

(3) the pretreated municipal sewage of gained being carried out supersound process, ultrasonic power is 1650w, and ultrasonic time is 45min, then stands 25 minutes, through filtration treatment, obtains clarifying contaminated liquids liquid;

(4) by clarifying contaminated liquids liquid by D113 cation exchange resin, applied sample amount and resin quality ratio is for 9:1, and loading flow velocity is 1.2BV/h, the most again by D401 chelating ion exchange resin, applied sample amount and resin quality ratio is for 7:1, and loading flow velocity is 0.3BV/h;

(5) in the clarifying contaminated liquids liquid of resin absorption add mass ratio be the flocculant of 0.5%, mechanical agitation 5 minutes, so Rear standing 3 hours, wherein the consisting of of flocculant: aluminium polychlorid 10 parts, 8 parts of iron sulfate, sodium polyacrylate 7 parts, wooden sulphur Hydrochlorate 5 parts, mucopolysaccharide 3 parts, catechin 2 parts;

(6) by the supernatant through flocculation sediment gained by AB-8 macroporous adsorbent resin, applied sample amount and resin quality ratio for 9:1, Loading flow velocity is 1.9BV/h;

(7) after the supernatant through macroporous resin adsorption carries out filtration treatment by film filter, then through sewage ultraviolet sterilizer Sterilization treatment, must reach the process water of discharge standard, and uviol lamp power is 300w, and the process time is 60 seconds.

The process water indices test result of discharge is as shown in table 1.

Comparative example 2

(1) preparation compound sewage inorganic agent, concrete formula is: corn starch-acrylamide grafted copolymer 9 parts, soybean protein Extract 12 parts, ferric chloride 17 parts, ethoxy quinoline 9 parts, benzoyl peroxide 13 parts, Butyl Chemosept 9 parts, hydroxyl Ethylene-diphosphonic acid 20 parts, Radix Glycyrrhizae extract 10 parts;

(2) in municipal sewage, add the compound sewage inorganic agent that mass ratio is 0.7%, mechanical agitation 25 minutes, obtain through pre-place The municipal sewage of reason;

(3) the pretreated municipal sewage of gained being carried out supersound process, ultrasonic power is 1650w, and ultrasonic time is 45min, then stands 25 minutes, through filtration treatment, obtains clarifying contaminated liquids liquid;

(4) by clarifying contaminated liquids liquid by D113 cation exchange resin, applied sample amount and resin quality ratio is for 9:1, and loading flow velocity is 1.5BV/h, the most again by D401 chelating ion exchange resin, applied sample amount and resin quality ratio is for 7:1, and loading flow velocity is 0.8BV/h;

(5) in the clarifying contaminated liquids liquid of resin absorption add mass ratio be the flocculant of 0.5%, mechanical agitation 15 minutes, so Rear standing 4 hours, wherein the consisting of of flocculant: aluminium polychlorid 10 parts, 8 parts of iron sulfate, sodium polyacrylate 7 parts, wooden sulphur Hydrochlorate 5 parts, mucopolysaccharide 3 parts, catechin 2 parts;

(6) by the supernatant through flocculation sediment gained by AB-8 macroporous adsorbent resin, applied sample amount and resin quality ratio for 9:1, Loading flow velocity is 2.2BV/h;

(7) after the supernatant through macroporous resin adsorption carries out filtration treatment by film filter, then through sewage ultraviolet sterilizer Sterilization treatment, must reach the process water of discharge standard, and uviol lamp power is 300w, and the process time is 60 seconds.

The process water indices test result of discharge is as shown in table 1.

The process water of embodiment 1-4 and comparative example 1-2 is carried out respectively float (SS), COD (COD), biochemistry Oxygen demand (BOD), vegetable and animals oils content, petroleum content, ammonia-nitrogen content and these several index tests of fecal coli number.

Table 1

The processing method of the municipal sewage of the present invention mainly applies compound sewage inorganic agent and the sewage stirring reaction of special formula, Through supersound process, ion exchange column crosses post eluting, flocculant stirring flocculation sediment, and flocculation supernatant crosses post adsorbent resin, film Filter filtration treatment, sterilization treatment, obtain the process water of discharge standard.Sewage water treatment method for above-mentioned optimization technique obtains The process water arrived, sewage treating efficiency is high, and the process water of eliminating all can reach national standard, the most simple for process, can grasp The property made is strong, and environmentally safe, it is possible to meets the requirement of industry, has preferable application prospect.The municipal sewage of the present invention Processing method cheaper starting materials, technique simple, be suitable to heavy industrialization and use, practical.

The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology necks Territory, is the most in like manner included in the scope of patent protection of the present invention.

Claims (4)

1. the processing method of municipal sewage, it is characterised in that comprise the following steps:
(1) preparation compound sewage inorganic agent, concrete formula is: corn starch-acrylamide grafted copolymer 3-9 part, carboxymethyl Chitosan 5-15 part, soybean protein extract 3-12 part, ferric chloride 6-17 part, ethoxy quinoline 5-9 part, benzoyl peroxide 3-13 part, sodium cyclohexyl sulfamate 4-16 part, polylactic acid 5-12 part, Butyl Chemosept 4-9 part, 1-hydroxy ethylidene-1,1-diphosphonic acid 6-20 part, Radix Glycyrrhizae extract 5-10 part, allantoin 2-9 part;
(2) in municipal sewage add mass ratio be 0.7% compound sewage inorganic agent, mechanical agitation 20-25 minute, obtain through The municipal sewage of pretreatment;
(3) the pretreated municipal sewage of gained being carried out supersound process, ultrasonic power is 1500-1700w, and ultrasonic time is 40-50min, then stands 25 minutes, through filtration treatment, obtains clarifying contaminated liquids liquid;
(4) by clarifying contaminated liquids liquid by D113 cation exchange resin, applied sample amount and resin quality ratio is for 9:1, and loading flow velocity is 1.2BV/h-1.5BV/h, the most again by D401 chelating ion exchange resin, applied sample amount and resin quality ratio is for 7:1, loading Flow velocity is 0.3BV/h-0.8BV/h;
(5) in the clarifying contaminated liquids liquid of resin absorption add mass ratio be the flocculant of 0.5%, mechanical agitation 5-15 minute, Then 3-4 hour is stood, wherein the consisting of of flocculant: aluminium polychlorid 8-10 part, iron sulfate 8-10 part, sodium polyacrylate 5- 7 parts, ligninsulfonate 3-5 part, mucopolysaccharide 2-5 part, catechin 1-3 part;
(6) by the supernatant through flocculation sediment gained by AB-8 macroporous adsorbent resin, applied sample amount and resin quality ratio for 9:1, Loading flow velocity is 1.9-2.2BV/h;
(7) after the supernatant through macroporous resin adsorption carries out filtration treatment by film filter, more sterilized process, must reach The process water of discharge standard.
The processing method of municipal sewage the most according to claim 1, it is characterised in that: the power of step (3) supersound process For 1650w, ultrasonic time is 45 minutes.
The processing method of municipal sewage the most according to claim 1, it is characterised in that: consisting of of step (4) flocculant Aluminium polychlorid 10 parts, 8 parts of iron sulfate, sodium polyacrylate 7 parts, ligninsulfonate 5 parts, mucopolysaccharide 3 parts, catechin 2 parts.
The processing method of municipal sewage the most according to claim 1, it is characterised in that: step (7) sterilization process uses Being sewage ultraviolet sterilizer, uviol lamp power is 300w, and the process time is 60 seconds.
CN201610387609.8A 2016-06-02 2016-06-02 Method for treating city sewage CN106007119A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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