CN104478055B - Sewage disposal complexing agent, its preparation method and methods for using them - Google Patents

Sewage disposal complexing agent, its preparation method and methods for using them Download PDF

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Publication number
CN104478055B
CN104478055B CN201410804021.9A CN201410804021A CN104478055B CN 104478055 B CN104478055 B CN 104478055B CN 201410804021 A CN201410804021 A CN 201410804021A CN 104478055 B CN104478055 B CN 104478055B
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sewage disposal
complexing agent
sewage
component
agent
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CN104478055A (en
Inventor
王东杰
陈雪凤
周卓兴
刘琼光
陈世江
王宁
林金燕
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SHENZHEN SANLIN BIOLOGY SCIENCE & TECHNOLOGY ENGINEERING Co Ltd
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SHENZHEN SANLIN BIOLOGY SCIENCE & TECHNOLOGY ENGINEERING Co Ltd
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    • 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
    • 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
    • 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
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • 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
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment

Abstract

The invention provides a kind of sewage disposal complexing agent and preparation method thereof, application process.The sewage disposal complexing agent includes following component by weight percentage:Host 60%~80%, pH adjusting agent 10%~25%, proportion dose 5%~10%, adsorbent 2%~6%;Host includes aluminum sulfate, sodium carbonate and quick lime;Its preparation method, comprises the following steps:Formula according to above-mentioned sewage disposal complexing agent weighs each component respectively;Mixed processing, obtains the sewage disposal complexing agent.The sewage disposal complexing agent flocculates and settling velocity is fast, turbidity removal rate is high, high-efficient purification water quality and natural environment is not polluted, applied to sewage disposal.

Description

Sewage disposal complexing agent, its preparation method and methods for using them
Technical field
The invention belongs to Sewage Sludge Treatment Techniques field, specifically a kind of sewage disposal complexing agent, its preparation side Method and methods for using them.
Background technology
In the last few years, industrial wastewater, sanitary sewage were always the important source of environmental pollution.Substantial amounts of waste water, sewage are not River, lake, underground water etc. are just discharged into through processing, ecological environment is not only degrading, also seriously threatens animals and plants and people The life and health of class.With the reinforcement of understanding and environmental consciousness that the mankind are endangered industrial wastewater, how to handle industrial wastewater and Sanitary sewage, the standard for reaching discharge just seems and become more and more important.
At present, the main method of sewage disposal has biochemical process, ion-exchange, flocculent precipitation, absorption method etc..Wherein, Flocculent precipitation is a kind of most widely used processing method, is compared to other processing methods, flocculent precipitation is with its energy consumption Low, operating cost is low, and efficiency high and the low advantage of sludge loading are used widely in sewage treatment area.
And the core of flocculation treatment method is flocculant, its species is various, mainly including inorganic flocculating agent, organic flocculant, Microbial flocculant and composite flocculant.Traditional inorganic polymer flocculant dosage is big, and secondary pollution is serious;Synthesis Though organic polymer coargulator have consumption it is small, the advantages of flocculation ability is strong, its difficult degradation, some also have certain poison Side effect;Microbial flocculant is still in the experimental study stage, it is impossible to be used widely.At present, inorganic and synthesis is organic high Molecular flocculant plays extremely important effect always in sewage disposal, but some flocculants are present that composition is simple, flocculation With settling velocity is slow, turbidity removal rate is not high, application method is complicated and causes secondary pollution problems.
The content of the invention
It is an object of the invention to overcome prior art above-mentioned not enough there is provided one kind flocculation and settling velocity be fast, turbidity removal Rate height, high-efficient purification water quality and the sewage disposal complexing agent not polluted to natural environment.
Another object of the present invention is to provide the preparation method of above-mentioned sewage disposal complexing agent.
Another object of the present invention is to provide the application process of above-mentioned sewage disposal complexing agent.
In order to realize foregoing invention purpose, the technical scheme of the embodiment of the present invention is as follows:
A kind of sewage disposal complexing agent, includes component as follows by weight percentage:
The host includes aluminum sulfate, sodium carbonate and quick lime;Wherein, the weight of the aluminum sulfate, sodium carbonate and quick lime Amount is than being 1:0.5~0.8:0.6~1, the adsorbent includes sodium carboxymethylcellulose and/or sodium alginate.
And, the preparation method of above-mentioned sewage disposal complexing agent comprises the following steps:
Formula according to above-mentioned sewage disposal complexing agent weighs each component respectively;
Mixed processing, obtains the sewage disposal complexing agent.
And, the application process of above-mentioned sewage disposal complexing agent, applied to sewage disposal.
Above-mentioned sewage disposal complexing agent is not had residual by being main material by inorganic natural minerals with the waste water after its processing The organic matter stayed, is discharged into nature and does not also pollute the environment;Meanwhile, the sewage disposal complexing agent compounding use quick lime and carbon Sour sodium, both, which are dissolved in, forms larger potential difference after water, and aluminum sulfate can provide substantial amounts of complex ion, by absorption, crane span structure, Crosslinked action, the particle agglutinations such as the suspension in sewage so as to form firm cohesive force, can effectively be got up, flocculate and sink Shallow lake speed is fast, turbidity removal rate is high, high-efficient purification water quality.Therefore, sewage just can be effectively handled with a small amount of sewage disposal complexing agent, Reduce cost;And the sewage disposal complexing agent is easy to storage and transport.
Above-mentioned sewage disposal complexing agent is mixed each component by proportioning, and manufacture craft is simple, and condition is easily-controllable, is easy to push away Extensively.
Above-mentioned sewage disposal complexing agent can be used for various sewage disposals, and flocculate and settling velocity is fast, turbidity removal rate is high, height Effect purifies water, and the scale processing of sewage can be achieved.
Brief description of the drawings
Fig. 1 is the preparation technology schematic flow sheet of sewage disposal complexing agent of the embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not For limiting the present invention.
The embodiments of the invention provide one kind flocculation and settling velocity is fast, turbidity removal rate is high, high-efficient purification water quality and to nature The sewage disposal complexing agent that environment does not pollute.The sewage disposal complexing agent includes following component by weight percentage:It is main Agent 60%~80%, pH adjusting agent 10%~25%, proportion dose 5%~10%, adsorbent 2%~6%;Host includes sulphur In sour aluminium, sodium carbonate and quick lime.
Further, the percentage by weight of above-mentioned sewage disposal complexing agent each component is preferably:Host 60%~70%, pH Conditioning agent 20%~25%, proportion dose 6%~10%, adsorbent 3%~6%.
Specifically, when above-mentioned host is the compound of aluminum sulfate, sodium carbonate and quick lime, the percentage by weight of three is 1: 0.5~0.8:0.6~1.These are inorganic using aluminum sulfate, sodium carbonate and quick lime for the sewage disposal complexing agent of the embodiment of the present invention Natural minerals are main material, and the waste water after processing does not have the organic matter of residual, are discharged into nature and also do not pollute the environment, category In environmentally friendly flocculant.The quick lime of the proportioning is dissolved in sodium carbonate forms larger potential difference after water, and aluminum sulfate energy Substantial amounts of complex ion is provided, by absorption, crane span structure, crosslinked action, so that firm cohesive force is formed, can be effectively by sewage The particle agglutinations such as middle suspension get up;And a small amount of sewage disposal complexing agent just can effectively handle sewage, reduce reality Cost.Further, the content of above-mentioned aluminum sulfate is difficult too high, such as its weight percent content no more than 50%, no The water after processing can be then caused to become white and more muddy;Its weight percent content can not be less than 15%, otherwise can Cause not thorough, the phenomenon of poor processing effect of flocculating.
Specifically, above-mentioned PH conditioning agents are cement or citric acid, preferably cement.It is preferred that cement is compound as sewage disposal The PH conditioning agents of agent, can effectively neutralize the pH value of the processed water reduced by aluminum sulfate.During whole flocculation, no Need to be adjusted the size of processed water pH value with neutralization chamber, so shorten process, decrease the substantial amounts of time, effectively The time of continuous processing processed water is added, actual gain is added.Specifically, above-mentioned proportion dose includes cement, magnetic At least one of powder, iron powder, other magnetic materials.By adding magnetic in the sewage disposal complexing agent of the embodiment of the present invention The magnetic materials such as powder, when being flocculated by aluminum ions crosslinked action, magnetic is stained with the suspended particulate surface after crosslinking The particles of magnetic material such as powder, due to there is faint magnetic force between Magnaglo and Magnaglo so that between suspended particulate mutually Involve, so as to form bigger suspended particle.At the same time, the magnetic material such as magnetic has higher proportion, can be effective Increase suspended particle proportion, add attracting each other for magnetic force, the rate of settling of suspension can be increased substantially, more entered The separation for promoting suspended particulate and moisture of one step.
Specifically, above-mentioned adsorbent is included in sodium carboxymethylcellulose, sodium alginate, chitin, chitin derivativ It is at least one.The adsorbent is added in the sewage disposal complexing agent of the embodiment of the present invention, by gold contained in processed water Category element has very high adsorption capacity, central to become oxide while heavy metal classes element, metalloid dvielement is removed Metallic element etc. further become basic anhydride, with ionic stronger covalent key so as to settling out.Cause To cover these elements, these elements will not dissolution again so that assigning this sewage disposal complexing agent has excellent processing The performance of heavy metal or metalloid element.The sewage disposal complexing agent of the embodiment of the present invention is by will be former based on inorganic natural minerals Material, compounding use PH conditioning agents, proportion dose, adsorbent utilize the high positive charge density and organic high score of inorganic flocculating agent The bridging effect of sub- flocculant, can significantly improve flocculation treatment ability;And the process using pH value neutralization chamber is saved, greatly Amplitude improves the rate of settling of suspension, efficient process heavy metal or metalloid element, reduces the time of sewage disposal, increases Actual gain.
As shown in figure 1, the embodiment of the present invention additionally provides a kind of preparation method of sewage disposal complexing agent, including following step Suddenly:
S01:Formula according to above-mentioned sewage disposal complexing agent weighs each component respectively;
S02:Sieving processing is ground, the granular size of each component is more than 100 mesh.
S03:Mixed processing, obtains the sewage disposal complexing agent.
Specifically, in above-mentioned steps S01, method and apparatus commonly used in the art is taken in weighing for each component, herein Repeat no more.
Specifically, in above-mentioned steps S02, equipment commonly used in the art is taken in the processing of grinding and sieving.
Further, in the step of grinding and sieving are handled, the granular size of each component is more than 100 mesh, be preferably 100~200 mesh.The each component of the preferred size dimension, which is mutually compounded, can reach best adsorption effect, improve the present invention and implement The combination property of example sewage disposal complexing agent.
Specifically, in above-mentioned steps S03, in order to farthest play the effect of each component, each component is both needed to uniform point Dissipate mixing.Preferably, first by above-mentioned aluminum sulfate, sodium carbonate, the dispersed mixing of quick lime, PH conditioning agents, proportion is added and is increased Plus agent and adsorbent, can also be by the dispersed mixing simultaneously of all components.
Sewage disposal of embodiment of the present invention complexing agent prepares simple, flocculation composition collocation rationally, and preparation technology and equipment will Ask simple, can be widely popularized.
Each constituent of sewage disposal complexing agent of the embodiment of the present invention is cheap, cost is low, and flocculant sedimentation speed Degree is fast, turbidity removal rate is high, can be widely applied to Industrial Waste Water Treatments, sanitary sewage disposal, contaminated rainwater treatment, garbage filter In terms of liquid processing.
Now by taking specific sewage disposal complexing agent and its application process as an example, the present invention will be described in further detail.
Embodiment 1
A kind of sewage disposal complexing agent, including component by weight percentage as follows:
Embodiment 2
A kind of sewage disposal complexing agent, including component by weight percentage as follows:
Comparative example 1
A kind of sewage-treating agent, includes following component:Aluminum sulfate, sodium carbonate, quick lime.
Comparative example 2
A kind of sewage-treating agent, includes following component:Aluminum sulfate, sodium carbonate, quick lime, FeCl3
Comparative example 3
A kind of sewage-treating agent, includes following component:Aluminum sulfate, sodium carbonate, quick lime, CaSO4
Comparative example 4
A kind of sewage-treating agent, includes following component:Aluminum sulfate, sodium carbonate, quick lime, polyacrylamide.
Test result
By the 0.2g embodiments of the present invention 1, comparative example 1, comparative example 2, comparative example 3, comparative example 4 sewage-treating agent It is separately added into 30ml 5 ‰ Kaolin clay suspensions, shakes up, observation experiment phenomenon.Test result such as table 1 below:
Table 1
By the way that shown in upper table, it is known that the flocculant (comparative example 1) generated by aluminum sulfate, the coagulated particles of generation are very It is small, illustrate that it can not make suspension gigantism, and also supernatant contains some suspended particulates, without subsidence velocity and heavily fortified point quickly Solid cohesiveness;Comparatively speaking, add after calcium sulfate (comparative example 2), supernatant becomes limpid, sinking speed changes not Greatly;And add after iron chloride (comparative example 3), sinking speed has lifting, but supernatant is less limpid;Polyacrylamide is organic Flocculant, (comparative example 4) is used after mixing, forms agglomerate sedimentation, and effect is poor.And the sewage disposal of the embodiment of the present invention 1 is answered Mixture, fast using rear sinking speed, supernatant is limpid, and does not return molten.
Further, the sewage disposal complexing agent of the embodiment of the present invention 1 is subjected to flocculating rate measure:
4g/L aqueous suspension ofkaolins are prepared in 800ml beakers (quick on temperature constant magnetic stirring machine to stir 2h, kaolin It is pure to analyze), take 46ml to be placed in 50ml color-comparison tubes, add 2ml concentration 10g/LCaCI2 solution, jump a queue and turn upside down 10 It is secondary, the sewage disposal complexing agent of the 0.2g embodiment of the present invention 1 is then added, jumps a queue and turns upside down 10 times, 15min is stood, with shifting Liquid pipe takes under liquid level supernatant at about 0.5cm to survey OD, is designated as B, ibid, is not added with flocculant, determines the OD of blank sample, is designated as A, presses Following formula calculates flocculating rate:η=[(A-B)/A] × 100%
Table 2:The measure of flocculating rate
The flocculating rate of this flocculant is up to 91.37%, therefore can effectively remove muddy pollutant.
Application Example 1:
The pretreatment of percolate:
The object of this project implementation is Baoan district of Shenzhen city tiger hole environmental protection garden percolate, and this filtrate comes from Municipal refuse, also known as oozes draining or leachate, refers to rubbish during stacking and landfill, due to ferment and rainwater leaching, Wash away, and surface water and groundwater immersion and the sewage that filters out.At present, more than 70% in Urban Garbage Treatment in China It is to use sanitary landfill method, and a direct result of sanitary landfills is exactly to produce a large amount of percolates.This leachate quality water Amount change is big, and organic concentration is high, content of beary metal is high, ammonia-nitrogen content is high, and surrounding enviroment and landfill yard substratum are polluted Seriously, and duration of pollution is long, secondary pollution is easily caused.Percolate complicated component, content of organics is high, only with Biological treatment is extremely difficult to ideal effect, and the ammonia nitrogen of high concentration has strong inhibitory action to the activity of microorganism, a huge sum of money Category ion pair microorganism can also produce poisoning and inhibitory action.Therefore, it is necessary to be pre-processed to it, in biological biochemistry before processing With the good place to go heavy metal of flocculant pretreatment energy and bulky grain suspension, it is smoothed out subsequent biological treatment.By pre- Processing, dosage is 50-100PPM, while percolate pH value is not influenceed, moreover it is possible to effective flocculating setting, filtrate is become clear It is clear so that the growing environment of microorganism is improved in biochemistry pool.
100ml percolates are taken to add in 250ml beakers, the sewage disposal for adding the 0.3g embodiment of the present invention 1 is answered Mixture, after being stirred 5 minutes with certain mixing speed (60-120r/min), stands 15 minutes, takes supernatant to determine its flocculation heavy Effect drops.
Table 3:Sewage disposal complexing agent treatment effect
In upper table 3, large particulate matter after COD and ammonia nitrogen, and flocculation can be reduced after the processing of sewage disposal complexing agent and is sunk Lower, under conditions of pH value is not influenceed, reduce the load of subsequent treatment difficulty and filtration system, preferable effect can be got Really.
Application Example 2:
Polluted river water is pre-processed:The discharge of house refuse is caused after the pollution of river, river be contaminated, its natural ecosystem System is destroyed, and the aquatic animal such as fishes and shrimps gradually decreases, or even occurs the extinction phenomenon of rare aquatic animals, and severe contamination makes river Flow stench continuous.Because water quality of river is contaminated, organic pollution is had found in drinking water source, wherein it is having in addition have or Suspect with carcinogenic, teratogenesis, mutagenic " three cause " material.The nuisance such as pathogenic microorganisms in heavy metal and water in other water Matter also results in large-scale illness outbreak and prevalence, and the life and health hazard to people are very big.River pollution may also can Edible biological in water is poisoned, and pass through the health of the food chain harm mankind.Industrial chemical is leaked suddenly, causes river Contamination accident, can influence the life security of more people.This product has the effect that rapid subsidence purifies water, and can make the clear of water change It is clear, and natural environment is not polluted, pH value is controlled on region of the natural environment without influence, can remove heavy metal contaminants, Good effect can be reached to a certain extent.
100ml sanitary sewages are taken to add in 250ml beakers (by taking the sanitary sewage of Shenzhen as an example), the present invention for adding 0.3g is real The sewage disposal complexing agent of example 1 is applied, takes supernatant to determine its flocculating setting effect.
Table 4:Sewage disposal complexing agent treatment effect
The sewage disposal complexing agent of inventive embodiments 1 free of contamination simultaneously to natural environment, by pH value control to from Right region of the environment without influence, using the rapid subsidence ability of this flocculant, reaches removal effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.

Claims (1)

1. a kind of sewage disposal complexing agent, including component by weight percentage as follows:
The host includes aluminum sulfate, sodium carbonate and quick lime;Wherein, the weight ratio of the aluminum sulfate, sodium carbonate and quick lime For 1:0.5~0.8:0.6~1, the adsorbent includes sodium carboxymethylcellulose and/or sodium alginate.
CN201410804021.9A 2014-12-22 2014-12-22 Sewage disposal complexing agent, its preparation method and methods for using them Active CN104478055B (en)

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CN106477650A (en) * 2016-12-08 2017-03-08 安徽睿知信信息科技有限公司 A kind of sewage disposal chemical reagent
CN107082477A (en) * 2017-05-12 2017-08-22 湖州梦源环保科技有限公司 A kind of sewage treatment process of sewage-treating agent and the application inorganic agent
CN107915271A (en) * 2017-11-30 2018-04-17 广西南宁途御科技有限公司 A kind of resident living sewage-treating agent
CN110228831A (en) * 2019-06-18 2019-09-13 天津伟创园林绿化有限公司 A kind of water remediation agent administered for black and odorous water containing natural mineral matter

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CN100361904C (en) * 2004-08-25 2008-01-16 长彰德 Coagulant for cleaning polluted water or contaminated water
JP4464765B2 (en) * 2003-08-25 2010-05-19 株式会社グロースファクター Flocculant for contaminated water or contaminated water purification treatment
CN100348509C (en) * 2004-03-18 2007-11-14 翟智高 Water saving type multifunctional technique for treating circulating water and device

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