CN102371145B - Composite efficient cyanobacteria-eutrophication water treatment agent - Google Patents
Composite efficient cyanobacteria-eutrophication water treatment agent Download PDFInfo
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Abstract
The invention relates to an attapulgite clay composite cyanobacteria-eutrophication water treatment agent, which is a special sewage treatment agent in the fields of environmental protection and environmental treatment. According to the present invention, attapulgite clay, bentonite and natural zeolite are subjected to activation and modification and other high-tech deep processing, and are scientifically compounded with organic reagents to prepare the attapulgite clay composite cyanobacteria-eutrophication water treatment agent, which centralizes special properties of a plurality of minerals and organic additives; the treatment agent is mainly used for cyanobacteria outbreak emergency treatments of lakes, reservoirs, rivers, landscape water and the like, and eutrophication long-term treatments; the treatment agent is an innovative method for ecological restoration and resource; the treatment agent further can be used for heavy metal contaminated water treatments, wherein the heavy metals comprise arsenic, lead and the like; the treatment agent is adopted in the cyanobacteria outbreak in Tai lake of Jiangsu, Chao lake of Anhui and the like, cyanobacteria-eutrophication water multiple sampling and field treatment tests, the results show that: the treatment agent has characteristics of good treatment effect, convenient operation and low cost; the treatment agent can be adopted as the emergency agent and the long-term agent, and can treat both manifestation and root cause; the pumped sludge can be adopted as high-quality green fertilizer, such that the waste is changed into wealth so as to realize the ecological restoration and the resource recycling economy.
Description
Technical field
The present invention relates to the inorganic agent of a kind of sewage disposal and environmental improvement, be specifically related to a kind of by Concave-convex clay rod (be called for short recessed soil, lower with), bentonite, zeolite and organic reagent auxiliary agent technology of preparing and the using method thereof through the composite composite efficient cyanobacteria-eutrophication water treatment agent forming of high-tech, deep processing and science.
Background technology
Blue algae bloom, mainly at impounded body, as lake, reservoir, river, landscape water etc., due to nitrogen, phosphorus eutrophication, produces under suitable weather conditions.Specifically, industrial pollutants, agricultural fertilizer and house refuse discharge etc. are the basic causes that causes water source severe contamination.Blue-green algae, in this serious eutrophication pollution water environment, grows, develops very soon so that outburst under suitable weather (temperature is more than 30 ℃) condition.
At nature, the competitiveness of blue-green algae is very strong.When it is in the time that water is seriously polluted, in water, more than 95% be all the wawter bloom that blue-green algae forms, so this phenomenon is called again to algal tufa.
Although it is inner and cause disease that blue-green algae can not parasitize human body or animal body, can produce a series of natural toxins, jeopardizes human body health.These toxin are present in the cell membrane of blue-green algae conventionally, and when blue-green algae lives, algae toxin is wrapped up wherein by cell membrane, and when it is dead while rotting membranolysis, algae toxin will be discharged in water.Microcystin (microcystin is called for short MC) is the class natural toxin that blue-green algae produces.The Microcystin being made up of 7 amino acid is modal cyanophycean toxin in fresh water environment.In the time of the serious eutrophication of water body, produce malicious blue-green algae and break out in a large number, Microcystin will seriously occur and be discharged in water body.Polluted by it (higher than solubilised state Microcystins, world health organisation recommendations limitation: drinking water 1mg/L) and aquatic products, bring grave danger will to human body health.Shanghai Medical Univ once tested the injury of mouse with regard to microcystin vegetarian meal, found that: algae toxin is after small intestine and liver transhipment, approximately 70% toxin is gathered in liver, and cause visceral organ injury, reproduction is also had a significant impact, there is potential tumor promotion (Yu Shunzhang, 2006).China per capita freshwater resources originally (only accounted for 1/4 of world average level, belonged to poor-water country with regard to very short.And along with the developing rapidly and industrialized propelling of economy, the water of China pollutes and increasingly sharpens.Voice of Germany site radio: the situation is tense in China Water pollution.2010/07/29; Reference News, 2010/07/31 (8)), and lake, reservoir, river water surface raised growth blue-green algae, and form wawter bloom, when dead rotting, there is stench, algae endotoxin contamination lake water, more make this short resource make the matter worse, serious harm ecological environment and drinking water safety.
How effectively controlling algal tufa and break out and wreak havoc, allow people enjoy for a long time clean, safe freshwater resources and good ecological environment, is key subjects and eager demand that current countries in the world are all very paid close attention to.
Occur in order to administer and control algal tufa, domestic and international many scholars have dropped into a large amount of human and material resources and financial resources, study multiple improvement, controlled technical method and measure that algal tufa breaks out, as chemical method, Physical, Mechanical Method, bioanalysis, ecological method and flocculence, absorption and magnetic method, clear water glallzing, overshot and stop or the blowdown of damming, etc.But these achievements in research, mostly belong to the laboratory result in basic research field, although extremely important, also very creative, but owing to all there is such or such defect or limitation in the whole bag of tricks and measure, it not technical sophistication, be exactly that cost is too high, be difficult for for the outburst of meet an urgent need-algal tufa and long-acting-eutrophication control.As Taihu Lake, during the nearly last ten years, that country and provinces and cities drop into is several one hundred, the fund that exceeds 100 billion, a large amount of human and material resources are administered Taihu Lake blue-green algae: close left alone without help with moved 1000 Duo Jia contaminating enterprises, purchase cyanobacteria fishing boat and from imported from America hydraulic suction dredge, though have made some progress, but just cure the symptoms, not the disease: in March, 2008, green peace organization of the world successively went to limit, Taihu Lake 7 times to November, gathered the river sample that imports Taihu Lake.Test result shows, in the 25 increments bases that collect, have the total nitrogen content of 20 parts all to exceed the earth's surface five class limit waterborne of national regulation, and river not only can not can not directly contact as drinking water, human body, even all can not be used as agricultural irrigation or industrial production.A national Reducing amount of chemical fertilizer applied policy---fertilization compositions based on earth measurement was carried out by the Zhe Shi Ministry of Agriculture since 2005, the project implementation is after 3 years, and the whole nation has been accumulated popularization fertilization compositions based on earth measurement area and reached 900,000,000 mu times.Wherein, surrounding area, Taihu Lake just this policy emphasis implement area one of.But green peace organization of world water sample test result but shows, the fertilization compositions based on earth measurement project of 3 years does not alleviate the water causing due to loss of chemical fertilizer and pollutes.Green peace organization of the world points out during to the random interview of peasant at sampling site periphery, and compared with before 10 years, peasant's applying quantity of chemical fertilizer has increased nearly 1 times.Visible, fertilization compositions based on earth measurement project obviously can not be improved extremely urgent serious agricultural pollution, and anti-increasing does not fall in field applying quantity of chemical fertilizer and fertilizer production.Address this problem, government must from source reduce from
chemical fertilizer pollute: implement production decrement for fertilizer enterprises; Strengthen not relying on chemical fertilizer
the ecological agriculturesupport.The currently used Yangtze River Water of drawing waters down TAIHU LAKE, be called and draw Jiang Jitai method and feed silver carp the lake water of eating algae method etc. and administer serious blue-green algae and eutrophication pollution: result is, silver carp has eaten blue-green algae, and Eutrophication materials is but unable to finish, also to void excreta, secondary pollution lake water; For the moment watered down lake water with river, but the lake water watering down has been entered to sea with Eutrophication materials, Eutrophication materials has imputed to ocean, causes coastal serious secondary pollution, causes red tide again and again to occur; Taihu Lake 2,000,000 people's around sanitary sewage still flows into Taihu Lake in a large number, makes lake water keep eutrophication, so Taihu Lake water quality is failed fundamental turn for the better; Lake water Eutrophication materials does not remove, and one to day cyclostrophic heat, and blue-green algae is revived, stages a comeback, so that serious outburst; Still be absorbed in vicious circle.As the morning on June 19th, 2010, in the western waters of the Taihu Lake Mei Liangwan apart from 11 kilometers, Wuxi City Important Water Source tribute lake water factory, according to the Chinese Central Television (CCTV), reporter sees that near the waters of 40,000 square metres has presented blue-green algae large-scale aggregating at the scene, and the water quality at tribute lake water factory water source is subject to serious threat.The Wuxi City urgent blue-green algae of launching to salvage of having to again, reporter sees at the scene, 9 pick-up boats are stepping up to salvage blue-green algae.Similarly Chaohu, Anhui Province, China, reporting of " Chinese Academy of Sciences succeeds in developing organic sewage inorganic agent can the controlling blue-green algae pollution " of on 06 01st, the 2007 reprinting www.xinhuanet.com of People's Net: ion beam bioengineering key lab of Hefei material science research institute of the Chinese Academy of Sciences works out a kind of organic sewage inorganic agent a few days ago, evenly add in one glass of sewage, within 3-5 minute, can make nitrogen, phosphorus and algae flocculation sediment, pass through again magnetic separation technique, thoroughly shift out pollutant, water body after treatment reaches national secondary discharge standard.This organic sewage inorganic agent is composite with several nontoxic materials such as industrial waste and shitosan such as flyash, adds magnetic etc., by physical and chemical modified, makes pulvis or aqua masterbatch.Test shows: this water treatment agent and Eutrophication Lake Water coagulation, first produce flocculate, then to stretch into magnet be adsorbable shift out nitrogen, phosphorus and algae.These new results, because added magnetic separation technique, can be realized the target of thorough radical cure nitrogen, phosphorus and blue-green algae.At the beginning of 5 months, Chaohu, Anhui Province, China Blue-green Algae Fast Growth, scientific research personnel builds simple platform on bank, the lake water 15m irrigation canals and ditches of flowing through, delivery port COD, total phosphorus, total nitrogen and concentration of algae decline respectively 97,59%, 85.28%, 60%, 99.52% than water inlet lake water.(reporter Cai Min).On 04 07th, 2009 or Cai Min reporter report for topic take " Chaohu, Anhui Province, China is tested Chinese Academy of Sciences blue-green algae by large area and " shifted out " technology ", " nitrogen phosphorus algae shifts out technology " by the research and development of Gai Yuan ion beam bioengineering key lab will carry out large area test in 1 square kilometre of waters in Chaohu, bring new hope for thoroughly eradicating Chaohu Lake hidden danger.The relevant researcher of the Chinese Academy of Sciences, builds up simulated experiment scene in the first two years in bank small size waters, north, Chaohu.Experimental results show that this technology can remove the nitrogen phosphorus of 90% left and right in Chaohu Lake (therefore reporter has exaggerated except the percentage of denitrification phosphorus, the person's of drawing note).According to theoretical calculate, this technology is expected to go back health Chaohu without blue-green algae in 20 years.But it is remarkable that phosphorus effect is denitrogenated in part, can magnetic water treatment agent is rendered in Chaohu of nearly 800 square kilometres of area bring into play effect, also lacks strong proof.Scientific research personnel holds discussion with the Committee of Development and Reform of Anhui Province a few days ago jointly, plan to impale the waters of 1 square kilometre and carry out " water body nitrogen phosphorus algae shifts out technology " experiment polluting the most serious porch, Chaohu, the southern Fei river in Anhui Province, use this technology to seek basis more reliably to eliminate Chaohu Lake for popularizing in an all-round way.This plan looks nice, regrettably, and the subsequent message of large area that so far there are no test.On 07 24th, 2010, because Chaohu is to the Changjiang river flood discharge with blow southwester day after day, half acid blue algae " stages a comeback " east, Chaohu, the blue-green algae of continuous several kilometers accumulates in doube bridge river one band, lake body is dyed to green, bottle green, and stench four escapes, apart from only 2 kilometers of left and right, 400,000 people drinking water sources, Chaohu, Chaohu has to again take promptly to salvage blue-green algae, guarantees drinking water safety.Be not difficult to find out by above-mentioned, not yet find so far the good method of a kind of can meet an urgent need-blue algae bloom and long-acting-eutrophication control.People wait in expectation in a hurry a set of safe, effective, improvement that cost is low, easy and simple to handle, control the birth of algal tufa and eutrophication inorganic agent and treatment technology method.
Summary of the invention
For solving and meeting this eager demand, through long term test, development, the Concave-convex clay rod that proposes Zeng Zuowei blue algae bloom emergency measure (is called for short recessed soil, lower same) and other nonmetallic minerals, through high-tech such as modified actives, deep processing, utilize their property advantages separately, and with organic reagent additive compound, make inorganic/organic agent, emergent and the long-acting improvement of eutrophic sewage for blue algae bloom, found that: this inorganic agent can adsorption of nitrogen, the Eutrophication materials such as phosphorus, can catch and kill again blue-green algae, inhale smelly, detoxification, effect is quite obvious, be expected to capture lake, reservoir, the algal tufas such as river are met an urgent need and this global problem of eutrophication control.
Under this thinking instructs, sum up clay in the past and remove algae experience, in the system research of multiple inorganic mineral physical and chemical performance and the composite experimental basis of the system of organic medicament, select 2: 1 type layer chain structures, the attapulgite of fibrous crystal and lamellar montmorillonite, frame shape structure forms tubulose, cage shape hole, the nonmetallic minerals such as the zeolite in duct, at the layer of these nonmetallic mineral crystal, layer chain, pipeline, there is negative electrical charge between cage and their end, produce absorption, the physical and chemical performance such as ion-exchange and dispersion, and purify through ore dressing, activation modification, pair roller rolls, dry roasting, the high-tech such as milling pulverizing, deep processing, further improve and strengthened their physical and chemical performance, composite with organic medical agent aid again, make composite highly effective blue-green algae-nitrogen phosphorus eutrophication water treatment agent (abbreviation inorganic agent).Be sprayed in the water such as lake, reservoir, river, through stirring, disperse immediately, be configured to the sticky space group system of catching of complicated pipeline absorption-network, coacervation forms bulky grain alumen ustum, it not only has algal tufa, and network sticky is caught, Electrostatic Absorption, and nitrogen, phosphorus etc. are had to the absorption of ion-exchange, duct, and the several functions such as deodorizing, drug abuse (containing absorbing Microcystin etc.); Along with bulky grain alumen ustum sinks rapidly, process water and become very soon as clear as crystal.For precipitating sludge desilting, Wuxi City from two hydraulic suction dredges of imported from America, can aspirate up the mud that is deposited in lakebed, as being rich in high-quality, the green organic manures such as nitrogen, phosphorus, algae, realizes restoration of the ecosystem and recycling economy-recycling.
Visible, composite efficient cyanobacteria-eutrophication water treatment agent fast except algae, remove Eutrophication materials, sucking sludge is as high-quality, green organic manure, form composite highly effective blue-green algae-eutrophication inorganic agent emergent and long-acting, treat both principal and secondary aspect of disease, restoration of the ecosystem and the improvement of recycling and the innovative technology method of control blue-green algae-eutrophication.For blue-green algae-eutrophication water treatments such as the similar lake of China and the world, reservoir, river and improvement bring novel technical method.Leading, the world has no report at home.
Accompanying drawing explanation
Fig. 1 is the production technological process of composite efficient cyanobacteria-eutrophication water treatment agent of the present invention.
The technological process of production of composite efficient cyanobacteria-eutrophication water treatment agent, comprise ore dressing purification, activation modification, pair roller roll (secondary), dry roasting, pulverizing, composite, stir, weigh, pack.
The specific embodiment
On this basis, through to eutrophication Investigation on characteristics such as blue-green algae and lake, reservoir, rivers, recessed soil etc. detect and absorb laboratory and the field condition experimental study of relation with the Eutrophication materials such as blue-green algae and nitrogen, phosphorus about nonmetallic mineral physical and chemical performance system, adopt recessed soil, bentonite and kaolin composite as started, former water contrasts with processing rear water, and clearance is respectively: ammoniacal nitrogen 21.31%, nitrate 80.27%, COD63.16%, total phosphorus 96.36%.The clearance of visible ammonium nitrogen is obviously on the low side.And change kaolin into zeolite, and situation will be taken on a new look greatly, through experiment, and really so (after referring to).
Finally select recessed soil, bentonite, zeolite to carry out that activation modification, pair roller roll, dry roasting, milling is pulverized, with organic reagent additive compound, the length of collection multi mineral and organic reagent auxiliary agent property, makes composite efficient cyanobacteria-eutrophication water treatment agent.In Taihu Lake, Jiangsu and Chaohu, Anhui Province, China and other river, the sewage disposal experimental study such as pool, all obtained very good effect.Now respectively with the technology of preparation method of composite efficient cyanobacteria-eutrophication water treatment agent and using method thereof select numerical example by the specific embodiment sketch under:
The technology of preparation method of composite highly effective blue-green algae-eutrophication inorganic agent
Embodiment 1: first get raw material: the ores such as recessed soil, bentonite, natural zeolite, carry out ore dressing purification: will stay containing the ore of attapulgite, montmorillonite and zeolite high Concave-convex clay rod, bentonite and natural zeolite ore, the gangue of non-Concave-convex clay rod, non-bentonite and nonzeolite is detected, their content is all reached respectively more than 70%.Then preparation, containing the spray solution of (by weight percentage) 8% sulfuric acid on recessed soil, bentonite, stirs, and ageing 8h becomes activation Concave-convex clay rod, activated bentonite.By activation Concave-convex clay rod, activated bentonite respectively pair roller roll 2 times, the thick 1mm of compressing tablet left and right; They are activated again.Re-activation Concave-convex clay rod, activated bentonite are put into and dried roaster or revolution kiln drying roasting, and temperature is respectively 100～250 ℃ and 100～350 ℃; Time 1-2h, makes their three activation.The activation modification of zeolite is that zeolite is placed on and is dried in roaster or rotary kiln, 350～500 ℃ of temperature, and the time is 1～3h approximately, more cooling rapidly, is active zeolite.Activation Concave-convex clay rod, activated bentonite, active zeolite and auxiliary agent are pulverized respectively, and granularity is 150～200 orders.Activation Concave-convex clay rod, activated bentonite, active zeolite and organic reagent auxiliary agent are filled a prescription, respectively by (percentage by weight) 200kg, 125kg, 100kg and 375kg weigh, composite.Mixing and stirring, 15min, is mixed powder.By mixed powder weigh 25kg or 50kg, pack in corresponding inner membrance, outer woven bag, sealing packing, is blue-green algae-eutrophication water treatment agent product.
Embodiment 2: get raw material: the ores such as recessed soil, bentonite, natural zeolite, carry out ore dressing purification: will stay containing attapulgite, montmorillonite and the high ore of zeolite, the gangue of non-Concave-convex clay rod, non-bentonite and nonzeolite is detected, their content is all reached respectively more than 70%.The solution of preparation (by weight percentage) 9% sulfuric acid, is sprayed on recessed soil, bentonite, stirs, and ageing 6h, becomes activation Concave-convex clay rod, activated bentonite.By activation Concave-convex clay rod, activated bentonite respectively pair roller roll 2 times, the thick 1.5mm of compressing tablet left and right, activates them again.Activation Concave-convex clay rod, activated bentonite are put into and dried roaster or revolution kiln drying roasting, and temperature is respectively 100～250 ℃ and 100～350 ℃; Time 1-2h, makes their three activation.Activating zeolite modification, is placed on zeolite to dry in roaster or rotary kiln, 350～500 ℃ of temperature, and the time is 1～2h approximately, cooling rapidly, is active zeolite.Activation Concave-convex clay rod, activated bentonite, active zeolite and auxiliary agent are pulverized respectively, and granularity is 150～200 orders.Activation Concave-convex clay rod, activated bentonite, active zeolite and organic reagent auxiliary agent are filled a prescription, respectively by (percentage by weight) 900kg, 500kg, 400kg and 1500kg weigh respectively, composite.Mixing and stirring, 15min, is mixed powder.By mixed powder weigh 25kg or 50kg, pack in corresponding inner membrance, outer woven bag, sealing packing, is blue-green algae-eutrophication water treatment agent product.
Embodiment 3: get raw material: the ores such as recessed soil, bentonite, natural zeolite, carry out ore dressing purification: will stay containing attapulgite, montmorillonite and the high ore of zeolite, the gangue of non-Concave-convex clay rod, non-bentonite and nonzeolite is detected, their content is all reached respectively more than 70%.Preparation, containing the solution of (by weight percentage) 10% sulfuric acid, is sprayed on recessed soil, bentonite, stirs, and ageing 4h, becomes activation Concave-convex clay rod, activated bentonite.By activation Concave-convex clay rod, activated bentonite respectively pair roller roll 2 times, the thick 1～2mm of compressing tablet left and right; They are activated again.Activation Concave-convex clay rod, activated bentonite are put into and dried roaster or revolution kiln drying roasting, and temperature is respectively 100～250 ℃ and 100～350 ℃; Time 1-2h, makes their three activation.Activating zeolite modification, is placed on zeolite to dry in roaster or rotary kiln, 350～500 ℃ of temperature, and the time is 1～2h approximately, cooling rapidly, is active zeolite.Activation Concave-convex clay rod, activated bentonite, active zeolite and organic medical agent aid are pulverized respectively, and granularity is 150～200 orders.Activation Concave-convex clay rod, activated bentonite, active zeolite and organic reagent auxiliary agent are filled a prescription, respectively by 75kg, 50kg, 25kg and 100kg weigh respectively, composite.Mixing and stirring, 15min, is mixed powder.By mixed powder weigh 25kg or 50kg, pack in corresponding inner membrance, outer woven bag, sealing packing, is blue-green algae-eutrophication water treatment agent product.
The using method of composite highly effective blue-green algae-eutrophication inorganic agent
Embodiment 4:
The quick-fried lake water test of Taihu Lake blue-green algae
In June, (1) 2007, Taihu Lake blue algae bloom, gets blue-green algae sewage water at laboratory treatment: 10 ‰ composite highly effective blue-green algae-eutrophication inorganic agents prepared by example 1, the TAIHU LAKE (former water) while putting into blue algae bloom, stir immediately, after 7min, water breakthrough gradual change is clear; After 30min, it is limpid that water becomes; After former water and processing, water shows after testing: Al, Be, Cd, Cr, Cu, Fe, P, nitrate, ammoniacal nitrogen, COD etc. all have obvious degradation, the effect of nitrate, phosphorus is particularly outstanding, the former clearance reaches more than 80%, and the latter's clearance reaches more than 95%, and algae toxin does not detect.
(2) 9 ‰ composite efficient cyanobacteria-eutrophication water treatment agents of being prepared by example 1 are put into and are subject to blue algae bloom to pollute (bad V class) TAIHU LAKE, after stirring, and 5-8 minute, most blue-green algaes are adsorbed, precipitate; After 12 hours, the death of sinking blue-green algae, is brown; It is limpid that lake water becomes, and reaches national surface water III class standard.
(3) 2009 years 09 month 09 day, Taihu Lake blue-green algae-eutrophication pollution water (former water), be dark blue-green, foul smelling taste, gets 8 ‰ inorganic agents that example 2 prepares and puts into lake water, stir after 1 minute, in water, see that bulk flocculation alumen ustum occurs, after 6 minutes, it is clear that water colour becomes, after 20 minutes, water is as clear as crystal.
Get supernatant (processing water) and former water and be contained in respectively censorship in coffee-like water sample bottle.Within on 09 21st, 2009, examining report shows, blue-green algae-eutrophication TAIHU LAKE, after composite efficient cyanobacteria-eutrophication water treatment agent is processed, is processed water and is respectively < 10mg/L, 0.02mg/L, 0.912mg/L; Clearance: ammoniacal nitrogen 62%, COD > 86%, total phosphorus reaches 96%, blue-green algae approximately more than 95%, meets or exceeds country's " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) and amendment: " when urban wastewater treatment firm water outlet is discharged country and economized sealing, the semiclosed waters such as definite major river valley and lake, reservoir, carry out the A standard regulation (COD50mg/L, total phosphorus 0.5mg/L, ammonia nitrogen 5mg/L etc.) of primary standard.
2. the blue outburst of Chaohu algae lake water test
On August 2nd, 2007, in the most serious location of blue algae bloom, Chaohu, Anhui Province, China west bank, iris out respectively two about 30m2 of area, depth of water 1-1.3m waters, put into lake water with 9% inorganic agent that two cover distinct methods are prepared example 3 and control algae test.Before processing, Blue-green Algae Fast Growth, water colour is dark green, and stink overflows, and water quality severe contamination belongs to bad V class water, and bank fisherman has complaint more.During two cover distinct methods abort inorganic agent, after 20 minutes, water is aobvious limpid; About 40 minutes, blue algae removal efficiency is about 90% left and right; Process lake water fisherman and lick and taste water taste with tongue, say: " people can drink.”
On 07 17th, 2010, in east, Chaohu, half acid blue algae was about to the outburst eve, got lake water sample at Wen Cunyi band, and it is green that a kind of water is, and foul smelling taste, processes.Get the inorganic agent 8 ‰ of preparing by example 3 and throw in green blue-green algae-Eutrophication Lake Water, after stirring, within 7 minutes, become clear, 20 minutes as clear as crystal; In bottle green sewage, throw in inorganic agent in the former ratio, effect is poor compared with the former, increases after inorganic agent 1,2 ‰, takes a turn for the better gradually, becomes as clear as crystal after 2h.
Supernatant (processing water) and the former moisture got after green sewage disposal fill censorship in coffee tinctorial pattern bottle.Examining report shows: ammonia nitrogen 0.346mg/L, COD (COD) 44mg/L, total phosphorus 0.27mg/L, nitrate nitrogen 0.16mg/L and the turbidity 263 of former water are spent, show that former water is except turbidity significantly exceeds standard, other index is all in the A standard of country's " urban wastewater treatment firm pollutant emission standard " primary standard; After treatment, clearance is respectively 50.58%, 60%, 51.85%, 37.58% and 96.58%.Visible, the high person's clearance of pollutant load is high, as turbidity; The low person of pollutant load, clearance is low, and the lower clearance of content is less.In general, treatment effect is good.
More than show, the technology of preparing of composite efficient cyanobacteria-eutrophication water treatment agent and using method thereof have obvious advantage: process purificating raw water speed fast, effect is remarkable, easy and simple to handle, hold concurrently and inhale blue-green algae, Eutrophication materials, with low cost, the short-term that can be used as blue algae bloom is met an urgent need, the long-acting improvement of eutrophication, treat both principal and secondary aspect of disease, also variable useless (algae, nitrogen, phosphorus) is precious (precipitating sludge is made high-quality, green fertilizer), ecological environment reparation and resource recycling utilization etc.There are wide demand and market prospects both at home and abroad.
Claims (4)
1. a preparation method for composite efficient cyanobacteria-eutrophication water treatment agent, comprises following methods, step:
The ore dressing of Concave-convex clay rod, bentonite and natural zeolite is purified;
The activation modification of Concave-convex clay rod, bentonite, natural zeolite;
The pair roller of activation Concave-convex clay rod, activated bentonite rolls;
Oven dry, the roasting of activation Concave-convex clay rod, activated bentonite and natural zeolite;
The pulverizing of activation Concave-convex clay rod, activated bentonite, active natural zeolite and organic additive;
The formula of activation Concave-convex clay rod, activated bentonite, active natural zeolite and organic additive;
Activation Concave-convex clay rod, activated bentonite, active natural zeolite and organic additive stir as mixed powder;
Mixed powder is weighed, is packed, and is the composite efficient cyanobacteria-eutrophication water treatment agent product of preparation;
Wherein the ore dressing of Concave-convex clay rod, bentonite and natural zeolite purification is to adopt sorting to carry out respectively, to stay containing Concave-convex clay rod, montmorillonite and the high ore of zeolite, the gangue of non-Concave-convex clay rod, non-bentonite and nonzeolite is detected, make the content of attapulgite, montmorillonite and zeolite respectively all more than 70%; Concave-convex clay rod wherein, bentonitic activation modification, be that the sulfuric acid solution containing percentage by weight 6～12% respectively, is evenly sprayed on Concave-convex clay rod, bentonite, stir, and ageing 4～8h; Just become the recessed soil of activation, activated bentonite; The activation modification of its mesolite, is to adopt thermal activation method, and zeolite is carried out in oven dry roaster or rotary kiln, and temperature is 350～500 ℃, time 1～3h; Rear water is sharply cooling, dry, becomes active zeolite; It is on pair roller roller, to carry out respectively that the pair roller that wherein activates Concave-convex clay rod, activated bentonite rolls, and each pair roller rolls 2 times, the thick 1～2mm of compressing tablet; Make to activate Concave-convex clay rod, activated bentonite activates again; Activation Concave-convex clay rod, activated bentonite wherein dried, roasting, is in drying oven or rotary kiln, to carry out respectively, and temperature is respectively 100～250 ℃ and 100～350 ℃, time 1-2h; Make to activate Concave-convex clay rod, activated bentonite activates for the third time, improves to greatest extent their pore volume, specific area.
2. according to the pulverizing of activation Concave-convex clay rod, activated bentonite, active zeolite and the organic reagent auxiliary agent that the process of claim 1 wherein, carry out respectively in Raymond mill, granularity is 150～200 orders.
3. according to the mix and blend of activation Concave-convex clay rod, activated bentonite, active zeolite and the organic reagent auxiliary agent that the process of claim 1 wherein, be to carry out in mixer, mixing time 10～25min, is the mixed powder stirring.
4. one kind adopts inorganic agent described in the claim 1-3 any one method for the water treatment of blue-green algae-eutrophication, it is characterized in that inorganic agent by the percentage by weight of sewage 0.08～0.15%, calculate and weigh, inorganic agent is sprayed in sewage, stir immediately 1～3min, observe the treatment effect of inorganic agent: after 6～10min, with blue-green algae, eutrophication pollution thing generation coacervation, form the alumen ustum, the rapid precipitation that differ in size; It is clear that 20～30min water colour becomes; Time lengthening, water is more as clear as crystal.
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| CN103232116B (en) * | 2013-04-08 | 2014-05-28 | 南京师范大学 | Method for treating heavy-metal wastewater by using biological water purifying agent prepared from cyanobacteria bloom |
| CN104774071A (en) * | 2014-01-14 | 2015-07-15 | 兰州交通大学 | Use of attapulgite in fertilizer synergist |
| CN103949203B (en) * | 2014-04-30 | 2016-03-30 | 明光市恒大棒粉厂 | A kind of preparation method of novel compound sewage process adsorbent |
| CN104056595B (en) * | 2014-06-12 | 2017-06-23 | 众合发(北京)生物科技发展有限公司 | A kind of algae and water toxin degradation element |
| CN104609970A (en) * | 2015-01-30 | 2015-05-13 | 中国科学院上海高等研究院 | Microalgae harvesting and fertilizer-making method |
| CN107233861A (en) * | 2016-03-28 | 2017-10-10 | 深圳市中兴生态环保研究院 | A kind of micro-nano mineral material of purification of heavy metal sludge and preparation method thereof |
| CN106277622A (en) * | 2016-08-31 | 2017-01-04 | 云南能投生态环境科技有限公司 | A kind of restorative procedure of body eutrophication |
| CN108998047A (en) * | 2018-08-17 | 2018-12-14 | 徐得强 | A kind of salinized soil modifying agent and preparation method thereof |
| CN109592762A (en) * | 2019-02-01 | 2019-04-09 | 何美英 | A kind of eutrophication water inorganic agent and preparation method thereof |
| CN110510754A (en) * | 2019-08-21 | 2019-11-29 | 江西青赣环境科技有限公司 | A kind of ground surface eutrophic water body inorganic agent and preparation method thereof |
| CN114700033A (en) * | 2020-12-07 | 2022-07-05 | 中国环境科学研究院 | Nitrogen and phosphorus control and aquatic plant habitat restoration material and preparation method and application thereof |
| CN113929217A (en) * | 2021-11-05 | 2022-01-14 | 贵州省生物研究所 | Combined restoration method of plateau lake submerged plant and adsorbent |
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| CN1762843A (en) * | 2004-10-20 | 2006-04-26 | 哈尔滨工业大学 | Pollution removing composite medicament for water disposal |
| CN1817439A (en) * | 2006-01-17 | 2006-08-16 | 昆明理工大学 | Rare earth adsorbent and production thereof |
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| CN1762843A (en) * | 2004-10-20 | 2006-04-26 | 哈尔滨工业大学 | Pollution removing composite medicament for water disposal |
| CN1817439A (en) * | 2006-01-17 | 2006-08-16 | 昆明理工大学 | Rare earth adsorbent and production thereof |
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