CN105174538B - The minimizing technology of aromatic sulphonic acid type organic in a kind of wastewater from chemical industry - Google Patents

The minimizing technology of aromatic sulphonic acid type organic in a kind of wastewater from chemical industry Download PDF

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Publication number
CN105174538B
CN105174538B CN201510584728.8A CN201510584728A CN105174538B CN 105174538 B CN105174538 B CN 105174538B CN 201510584728 A CN201510584728 A CN 201510584728A CN 105174538 B CN105174538 B CN 105174538B
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waste water
mud
wastewater
chemical industry
magnesium
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CN105174538A (en
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高阳
施亮
尹韬
盛卫民
孙君
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Jiangsu Jiuli Environmental Technology Co ltd
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Jiangsu Long Environment Engineering Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

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Abstract

The invention discloses a kind of minimizing technology of aromatic sulphonic acid type organic in wastewater from chemical industry, belong to technical field of waste water processing.The present invention is to soak the detritus acid in black mud by magnesium nitrate solution, form it into the sour magnesium of detritus, with benzene sulfonic acid sodium salt in waste water ion exchange generation benzene sulfonic acid magnesium occurs for detritus acid magnesium, carbonic acid magnesium precipitate is generated in the presence of sodium carbonate again, benzene sulfonic acid magnesium is separated out simultaneously, under the flocculation of cation PAC flocculants and PAM polyacrylamides, is precipitated together with riverway sludge flying dust, separated from solution, reach the purpose of removal.The beneficial effects of the invention are as follows:This method is good to the removal effect of aromatic sulphonic acid type organic in wastewater from chemical industry, and benzene sulfonate clearance is up to more than 98%, COD clearances up to more than 95%;Simple to operate, selectivity is strong, and operating cost is low, and processing procedure is pollution-free, has good development prospect in aromatic sulphonic acid class organic chemical waste water process field.

Description

The minimizing technology of aromatic sulphonic acid type organic in a kind of wastewater from chemical industry
Technical field
The present invention relates to a kind of minimizing technology of aromatic sulphonic acid type organic in wastewater from chemical industry, belong to wastewater processing technology neck Domain.
Background technology
Aromatic sulphonic acid based compound, as a kind of important fine chemical product, is the indispensable former material of chemical industry Material, its yield is considerable, be widely used in synthetic catalyst, emulsifying agent, lube oil additive, ion exchange resin and its The raw material of his a variety of specialty chemicals, be prepare phenolic compound, dyestuff, medicine, leather retanning agent and agrochemical it is important in Mesosome, but because its is complicated, production procedure length, side reaction be more, water solubility is strong, and a large amount of compositions are easily produced in production process The organic chemical waste water of the higher aromatic sulphonic acid class of complicated, concentration.This kind of Wastewater Pollutant concentration is high, aromatic azochlorosulfonate acid compound With hydrophilic sulfonic group, its water solubility is larger, and COD concentration is higher;Acid strong, color and luster is deep, and easily biological-degradable, not biochemical Property is poor.Because its waste water yield is big, concentration is high, difficult, to the seriously polluted of environment, receive significant attention its processing means. At present, the processing method of this kind of waste water is concentrated mainly on materializing strategy, including advanced oxidation processes, extraction and resin adsorption method, But these methods are present, and energy consumption is big, operating cost is high, poor selectivity, treatment effeciency are low, secondary pollution problems.Due to benzene sulfonic acid Salt is soluble in water, the bioremediation developed in recent years, and small water operational efficiency is high, and large-engineering is using very unstable, because of water quality Water is difficult to constant, and microorganism is difficult to stable adaptation to the change such as phenyl ring and sulfonic acid group, causes microorganism moment high-volume dead Die, the organic matter in waste water is difficult to remove.
The content of the invention
The technical problems to be solved by the invention:It is soluble in water for benzene sulfonate, and the presence of phenyl ring and sulfonic acid group The drawbacks of being difficult to be removed by microorganism again, there is provided a kind of minimizing technology of aromatic sulphonic acid type organic in wastewater from chemical industry, the party The detritus acid that method is extracted in black mud is soaked by magnesium nitrate solution, is formed it into the sour magnesium of detritus, detritus acid magnesium and waste water Ion exchange generation benzene sulfonic acid magnesium occurs for benzene sulfonic acid sodium salt, then generates carbonic acid magnesium precipitate in the presence of sodium carbonate, while separating out benzene Sulfonic acid magnesium, under the flocculation of cation PAC flocculants and PAM polyacrylamides, is precipitated, from molten together with riverway sludge flying dust Separated in liquid, reach the purpose of removal.
In order to solve the above technical problems, the present invention is using technical scheme as described below:It is fragrant in a kind of wastewater from chemical industry The minimizing technology of sulfonic acid type organic, its concrete operation step is:
(1) riverway sludge is taken, it is 8~10% to be dried at 90~95 DEG C to mud humidity, then stands and is cooled to room temperature, And make lower leaf thereon, the thick mud of 3~5cm of upper strata is then removed, lower floor's mud is obtained;
(2) lower floor's mud clear water that processing is obtained is rinsed 1~2 time, removes the impurity of upper strata mud residual, be placed in 3~4h is dried in baking oven, it is 80~90 DEG C to control oven temperature, obtains lower floor's humus mud;
(3) dried lower floor's humus mud is placed in the magnesium nitrate solution that concentration is 0.08mol/L and soaked, immersion Time is 1~2h, waits after the completion of soaking that exposure 1~2 day under sunshine teds once every 30~50min, treats that it is dried Afterwards, it is placed in grinding mill and is milled into powder;
(4) wastewater from chemical industry by required processing is introduced into processing pond, surveys its pH value, if pH value of waste water is 6.0~7.0, Directly handled, it is 6.0~7.0 to be adjusted if not in this range to pH value, and the powder for then obtaining above-mentioned processing is by 1 In~3g/L input waste water, and quickly stir, setting rotating speed is 3000r/min;
(5) sodium carbonate liquor that concentration is 1mol/L is added into waste water while stirring, when there is sediment in it, Cation PAC flocculants are added, it is 300~500mg to make its every liter waste water cationic PAC flocculant concentration, setting rotating speed is 300r/min, stirs 30~50s;
(6) after the completion of to be mixed, then the addition PAM polyacrylamides into waste water, make PAM polyacrylamides in its every liter waste water Amine concentration is 30~50mg, under the conditions of rotating speed is 300r/min, after 30~50s of stirring, rotating speed is reduced into 80r/min, entered Row is slowly stirred, control mixing time 10~15min, it is to be mixed after the completion of, stand 3~5h, filtering, water outlet.
The principle of the present invention:Detritus acid in black mud is soaked by magnesium nitrate solution, forms it into the sour magnesium of detritus, rotten Matter acid magnesium and benzene sulfonic acid sodium salt generation ion exchange generation benzene sulfonic acid magnesium in waste water, then generation magnesium carbonate sinks in the presence of sodium carbonate Form sediment, while benzene sulfonic acid magnesium is separated out, under the flocculation of cation PAC flocculants and PAM polyacrylamides, together with riverway sludge Flying dust is precipitated, and is separated from solution, is reached the purpose of removal.
The present invention is compared with other method, and advantageous effects are:
(1) this method is good to the removal effect of aromatic sulphonic acid type organic in wastewater from chemical industry, and benzene sulfonate clearance reaches More than 98%, COD clearance are up to more than 95%;
(2) simple to operate, selectivity is strong, and operating cost is low, and processing procedure is pollution-free.
Embodiment
Riverway sludge is taken first, and it is 8~10% to be dried at 90~95 DEG C to mud humidity, then stands and is cooled to room Temperature, and make lower leaf thereon, the thick mud of 3~5cm of upper strata is then removed, lower floor's mud is obtained;Obtained lower floor's mud will be handled Rinsed 1~2 time with clear water, remove the impurity of upper strata mud residual, be placed in baking oven drying 3~4h, control the oven temperature to be 80~90 DEG C, obtain lower floor's humus mud;Then dried lower floor's humus mud is placed in the nitre that concentration is 0.08mol/L Soaked in sour magnesium solution, soak time is 1~2h, is waited after the completion of soaking, exposure 1~2 day under sunshine, every 30~ 50min is tedded once, after it is dried, and is placed in grinding mill and is milled into powder;Again by the wastewater from chemical industry introducing of required processing Manage in pond, survey its pH value, if pH value of waste water is 6.0~7.0, is directly handled, adjusted if not in this range to pH It is worth for 6.0~7.0, the powder for then obtaining above-mentioned processing is put into waste water by 1~3g/L, and is quickly stirred, rotating speed is set For 3000r/min;The sodium carbonate liquor that concentration is 1mol/L is added into waste water while stirring, treats that it sediment occurs When, cation PAC flocculants are added, it is 300~500mg to make its every liter waste water cationic PAC flocculant concentration, sets rotating speed For 300r/min, 30~50s is stirred;After the completion of finally to be mixed, then the addition PAM polyacrylamides into waste water, make its every liter PAM concentration of polyacrylamide is 30~50mg in waste water, under the conditions of rotating speed is 300r/min, after 30~50s of stirring, by rotating speed Be reduced to 80r/min, be slowly stirred, control mixing time 10~15min, it is to be mixed after the completion of, stand 3~5h, filtering, Water outlet.
Example 1
Riverway sludge is taken first, and it is 8% to be dried at 90 DEG C to mud humidity, then stands and is cooled to room temperature, and makes it Upper lower leaf, then removes the thick mud of upper strata 3cm, obtains lower floor's mud;Obtained lower floor's mud clear water flushing 1 will be handled It is secondary, the impurity of upper strata mud residual is removed, is placed in baking oven drying 3h, it is 80 DEG C to control oven temperature, obtains lower floor's humus Mud;Then dried lower floor's humus mud is placed in the magnesium nitrate solution that concentration is 0.08mol/L and soaked, during immersion Between be 1h, wait after the completion of soaking that exposure 1 day under sunshine teds once every 30min, after it is dried, is placed in grinding mill In be milled into powder;The wastewater from chemical industry by required processing is introduced into processing pond again, surveys its pH value, if pH value of waste water is 6.0, is entered Row is directly handled, and it is 6.0 to be adjusted if not in this range to pH value, and the powder for then obtaining above-mentioned processing is put into by 1g/L In waste water, and quickly stir, setting rotating speed is 3000r/min;It is 1mol/L's to add concentration into waste water while stirring Sodium carbonate liquor, when it sediment occurs, adds cation PAC flocculants, makes its every liter waste water cationic PAC flocculant Concentration is 300mg, and setting rotating speed is 300r/min, stirs 30s;After the completion of finally to be mixed, then the addition PAM poly- third into waste water Acrylamide, it is 30mg to make PAM concentration of polyacrylamide in its every liter waste water, under the conditions of rotating speed is 300r/min, stirs 30s Afterwards, rotating speed is reduced to 80r/min, is slowly stirred, control mixing time 10min, it is to be mixed after the completion of, stand 3h, mistake Filter, water outlet.
This method is good to the removal effect of aromatic sulphonic acid type organic in wastewater from chemical industry, can make benzene sulfonate concentration in waste water 34mg/L is reduced to from 2000mg/L, benzene sulfonate clearance is 98.3%;Organic concentration in waste water is set to be dropped from 3000mg/L Low to arrive 44mg/L, COD clearances are 95.2%;Simple to operate, selectivity is strong, and operating cost is low, and processing procedure is pollution-free.
Example 2
Riverway sludge is taken first, and it is 9% to be dried at 92 DEG C to mud humidity, then stands and is cooled to room temperature, and makes it Upper lower leaf, then removes the thick mud of upper strata 4cm, obtains lower floor's mud;Obtained lower floor's mud clear water flushing 2 will be handled It is secondary, the impurity of upper strata mud residual is removed, is placed in baking oven drying 3.5h, it is 85 DEG C to control oven temperature, obtains lower floor's humic Matter mud;Then dried lower floor's humus mud is placed in the magnesium nitrate solution that concentration is 0.08mol/L and soaked, immersion Time is 1.5h, is waited after the completion of soaking, exposure 2 days under sunshine, is tedded once every 40min, after it is dried, is placed in stone roller Powder is milled into grinding machine;The wastewater from chemical industry by required processing is introduced into processing pond again, surveys its pH value, if pH value of waste water is 6.5, Then directly handled, it is 6.5 to be adjusted if not in this range to pH value, and the powder for then obtaining above-mentioned processing is by 2g/L Put into waste water, and quickly stir, setting rotating speed is 3000r/min;It is 1mol/ to add concentration into waste water while stirring L sodium carbonate liquor, when it sediment occurs, adds cation PAC flocculants, makes its every liter waste water cationic PAC wadding Solidifying agent concentration is 400mg, and setting rotating speed is 300r/min, stirs 40s;It is last it is to be mixed after the completion of, then add into waste water PAM Polyacrylamide, it is 40mg to make PAM concentration of polyacrylamide in its every liter waste water, under the conditions of rotating speed is 300r/min, stirring After 40s, rotating speed is reduced to 80r/min, is slowly stirred, control mixing time 13min, it is to be mixed after the completion of, stand 4h, Filtering, water outlet.
This method is good to the removal effect of aromatic sulphonic acid type organic in wastewater from chemical industry, can make benzene sulfonate concentration in waste water 45.5mg/L is reduced to from 3500mg/L, benzene sulfonate clearance is 98.7%;Make in waste water organic concentration from 4000mg/L 60mg/L is reduced to, COD clearances are 96%;Simple to operate, selectivity is strong, and operating cost is low, and processing procedure is pollution-free.
Example 3
Riverway sludge is taken first, and it is 10% to be dried at 95 DEG C to mud humidity, then stands and is cooled to room temperature, and makes it Upper lower leaf, then removes the thick mud of upper strata 5cm, obtains lower floor's mud;Obtained lower floor's mud clear water flushing 2 will be handled It is secondary, the impurity of upper strata mud residual is removed, is placed in baking oven drying 4h, it is 90 DEG C to control oven temperature, obtains lower floor's humus Mud;Then dried lower floor's humus mud is placed in the magnesium nitrate solution that concentration is 0.08mol/L and soaked, during immersion Between be 2h, wait after the completion of soaking that exposure 2 days under sunshine ted once every 50min, after it is dried, are placed in grinding mill In be milled into powder;The wastewater from chemical industry by required processing is introduced into processing pond again, surveys its pH value, if pH value of waste water is 7.0, is entered Row is directly handled, and it is 7.0 to be adjusted if not in this range to pH value, and the powder for then obtaining above-mentioned processing is put into by 3g/L In waste water, and quickly stir, setting rotating speed is 3000r/min;It is 1mol/L's to add concentration into waste water while stirring Sodium carbonate liquor, when it sediment occurs, adds cation PAC flocculants, makes its every liter waste water cationic PAC flocculant Concentration is 500mg, and setting rotating speed is 300r/min, stirs 50s;After the completion of finally to be mixed, then the addition PAM poly- third into waste water Acrylamide, it is 50mg to make PAM concentration of polyacrylamide in its every liter waste water, under the conditions of rotating speed is 300r/min, stirs 50s Afterwards, rotating speed is reduced to 80r/min, is slowly stirred, control mixing time 15min, it is to be mixed after the completion of, stand 5h, mistake Filter, water outlet.
This method is good to the removal effect of aromatic sulphonic acid type organic in wastewater from chemical industry, can make benzene sulfonate concentration in waste water 35mg/L is reduced to from 5000mg/L, benzene sulfonate clearance is 99.3%;Organic concentration in waste water is set to be dropped from 5000mg/L Low to arrive 60mg/L, COD clearances are 96.8%;Simple to operate, selectivity is strong, and operating cost is low, and processing procedure is pollution-free.

Claims (1)

1. the minimizing technology of aromatic sulphonic acid type organic in a kind of wastewater from chemical industry, it is characterised in that concrete operation step is:
(1) riverway sludge is taken, it is 8~10% to be dried at 90~95 DEG C to mud humidity, then stands and is cooled to room temperature, and makes Lower leaf thereon, then removes the thick mud of 3~5cm of upper strata, obtains lower floor's mud;
(2) lower floor's mud clear water that processing is obtained is rinsed 1~2 time, removes the impurity of upper strata mud residual, be placed in baking oven Middle 3~4h of drying, it is 80~90 DEG C to control oven temperature, obtains lower floor's humus mud;
(3) dried lower floor's humus mud is placed in the magnesium nitrate solution that concentration is 0.08mol/L and soaked, soak time For 1~2h, wait after the completion of soaking that exposure 1~2 day under sunshine teds once every 30~50min, after it is dried, put Powder is milled into grinding mill;
(4) wastewater from chemical industry by required processing is introduced into processing pond, surveys its pH value, if pH value of waste water is 6.0~7.0, is carried out Directly handle, it is 6.0~7.0 to be adjusted if not in this range to pH value, the powder for then obtaining above-mentioned processing by 1~ In 3g/L input waste water, and quickly stir, setting rotating speed is 3000r/min;
(5) sodium carbonate liquor that concentration is 1mol/L is added into waste water while stirring, when it sediment occurs, is added Cation PAC flocculants, it is 300~500mg to make its every liter waste water cationic PAC flocculant concentration, and setting rotating speed is 300r/ Min, stirs 30~50s;
(6) after the completion of to be mixed, then the addition PAM polyacrylamides into waste water, make PAM polyacrylamides in its every liter waste water dense Spend for 30~50mg, under the conditions of rotating speed is 300r/min, after 30~50s of stirring, rotating speed is reduced to 80r/min, delayed Slow stirring, control mixing time 10~15min, it is to be mixed after the completion of, stand 3~5h, filtering, water outlet.
CN201510584728.8A 2015-09-15 2015-09-15 The minimizing technology of aromatic sulphonic acid type organic in a kind of wastewater from chemical industry Expired - Fee Related CN105174538B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1500422A1 (en) * 2003-07-25 2005-01-26 Georg Dipl. Ing. Dr. Husz Filter body for cleaning contaminated surface water in the form of a ground profile acting as a filter
CN101037287A (en) * 2007-03-05 2007-09-19 清华大学 Method of resource protection, decrement treatment of town sewage and sludge
CN101041599A (en) * 2007-03-08 2007-09-26 上海交通大学 Method for treating sulfur-heavy metal containing waste gas with by-product of compound fertilizer by humic acid
CN101905994A (en) * 2010-06-22 2010-12-08 山东省科学院新材料研究所 Method for extracting humic acid liquid fertilizer with rich trace elements from sludge

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070018192A (en) * 2005-08-09 2007-02-14 주식회사 파이닉스알엔디 Processing method of high thickness organic sewage by sequencing and Batch type AB SAcksang-Busick-System

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1500422A1 (en) * 2003-07-25 2005-01-26 Georg Dipl. Ing. Dr. Husz Filter body for cleaning contaminated surface water in the form of a ground profile acting as a filter
CN101037287A (en) * 2007-03-05 2007-09-19 清华大学 Method of resource protection, decrement treatment of town sewage and sludge
CN101041599A (en) * 2007-03-08 2007-09-26 上海交通大学 Method for treating sulfur-heavy metal containing waste gas with by-product of compound fertilizer by humic acid
CN101905994A (en) * 2010-06-22 2010-12-08 山东省科学院新材料研究所 Method for extracting humic acid liquid fertilizer with rich trace elements from sludge

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