CN102826717A - Device and method for processing coal mine wastewater containing heavy metal - Google Patents

Device and method for processing coal mine wastewater containing heavy metal Download PDF

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Publication number
CN102826717A
CN102826717A CN 201210337391 CN201210337391A CN102826717A CN 102826717 A CN102826717 A CN 102826717A CN 201210337391 CN201210337391 CN 201210337391 CN 201210337391 A CN201210337391 A CN 201210337391A CN 102826717 A CN102826717 A CN 102826717A
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heavy metal
carrier
coal mine
sorbent
reactor
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周亚强
还春祥
蒋素英
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JIANGSU ATK ENVIRONMENT ENGINEERING Co Ltd
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JIANGSU ATK ENVIRONMENT ENGINEERING Co Ltd
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Priority to CN 201210337391 priority Critical patent/CN102826717A/en
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Abstract

The invention relates to a device and a method for processing coal mine wastewater containing heavy metal. The device comprises a pH value regulating tank, a heavy metal adsorption tank, an anaerobic biofilter, an aerobic biological fluidized bed and a DF membrane device, wherein a rotatable layered keel frame is arranged in the heavy metal adsorption tank, and a buckling groove for placing adsorption materials is formed in the keel frame. The layered keel frame can rotate at a certain speed, and the rotation speed is 1-3 circles per minute. A heavy metal adsorbing agent adopts an adsorbing agent made of jellyfish, and the anaerobic biofilter and the aerobic biological fluidized bed adopt a biomembrance process. Two reactors are connected with each other in series, and biological membrane carriers are added into the reactors. The used carriers are suspended biological carriers made of coconut shells as a raw material.

Description

A kind of treatment unit and method that is used to contain heavy metal coal mine waste water
Technical field
The present invention relates to a kind of treatment unit and method of coal mine waste water, particularly a kind of treatment unit and method that contains the coal mine waste water of heavy metal.
Background technology
Coal mine waste water is ore dressing water and coal washing waste water, and this type waste water also contains all kinds of flotation agent except that containing a large amount of suspension mineral dust or metals ion.Suspended particulate content can reach thousands of so that milligrams up to ten thousand for every liter.Coal washing waste water is mixed a kind of multinomial system of forming by primary slime, secondary slime and water.Include the coal slime particle in the coal washing waste water, mineral substance, clay particle etc.Coal washing waste water generally has the characteristics that SS concentration is high, the COD content is big.Therefore, black water not only has the character of suspension liquid, also often has colloidal character; Fine coal slurry particle, clay particle equigranular are very little, and it is quiet heavy to be difficult for, and these character have determined that such contaminated wastewater is heavy, intractability is big.The worse situation is also to contain the heavy metal contaminants of high level in the waste water of some coal mine.
Heavy metal runs up to certain limit in water body will produce serious harm to water body-waterplant-hydrocoles system; After biological heavy metal of body runs up to some amount; Will occur that physiology is obstructed, arrested development even death, whole aquatic ecosystem structure, function is impaired even collapse; Heavy metal also can jeopardize animal and human's class health through approach such as direct contact, food chains.Heavy metals such as copper, lead, cadmium, chromium, mercury can suppress the activity of anthropochemistry reaction enzymes, and tenuigenin is poisoned, and the infringement nervous tissue causes tissue to be poisoned, infringement human organ even carcinogenic, teratogenesis etc.Therefore the harm of coal mine waste water that contains heavy metal contaminants is bigger.
Administer the water resources of heavy metal contamination, the domestic and international method that adopts mainly comprises flocculent precipitation, absorption method, ion exchange method, microbial method and membrane separation technique etc.Flocculent precipitation is in containing the water of heavy metal ion, to add flocculation material; Perhaps regulate pH value in the water and make the heavy metal ion enrichment deposition in the water; Remove and isolating purpose thereby reach, there are the unfavorable factors such as potential of hydrogen that sludge quantity is big, change water in this method; Ion exchange technique can realize the recycling of metal when administering heavy metal industrial effluent, have the high economic reasonableness, but used exchange resin has the defective of intensity and wearing quality; The microbial method cost is lower, but applicable elements is comparatively harsh, and repair time is long, still is in the laboratory study stage; Membrane separation technique is water to be carried out suitable early stage handle; After means such as oxidation, reduction, absorption; Heavy metal ion in the water is converted into the insoluble attitude particulate of specific size, through filter membrane heavy metal ion is separated then, this method receives the restriction of film defective equally; Heavy metal in the absorption method treating water mainly is through the fluffy structure of the high-specific surface area of sorbing material or specific function group heavy metal ion in the water to be carried out physical adsorption or chemisorption.
The most important thing is, contain the coal mine waste water of heavy metal because it also has the SS value of superelevation, thereby increased the intractability of this waste water.
Summary of the invention
The invention provides a kind of treatment unit and method that contains heavy metal coal mine waste water.
Said device comprises following a few part: pH value equalizing tank, heavy metal adsorption tank, anaerobic biofilter, aerobic biological fluid-bed, DF film device.
Wherein be provided with rotary type layering keel frame in the heavy metal adsorption tank, the keel frame is provided with the draw-in groove of placing sorbing material.This layering keel frame can rotate with certain speed, and speed of rotation is at PM 1~3 circle.
It is described that to contain heavy metal coal mine wastewater treatment method following:
1, pending waste water is introduced pH value equalizing tank, use the pH regulator agent that the pH value is adjusted between 7.0~8.0.The original acid-basicity different according to processing waste water, aqua calcis and hydrochloric acid soln are selected in the pH regulator agent for use.
2, the water outlet of pH value equalizing tank gets into the heavy metal adsorption tank, places sorbent material on the draw-in groove of the rotary type layering keel frame in the heavy metal adsorption tank.Sorbent material adopts the biological products sorbent material.The hydraulic detention time of heavy metal adsorption tank is 4~8 hours.
3, the effluent of heavy metal adsorption tank flows in the bio-reactor, and 2 bio-reactors are set altogether, is respectively anaerobic biofilter, aerobic biological fluid-bed.These two reactor drums all adopt biomembrance process, connect between said two reactor drums.Add biofilm carrier in the reactor drum; Employed carrier is for being the suspended biological carrier that raw material is processed with the Exocarpium cocois (Cocos nucifera L); To add volume be 50%~55% of reactor volume to carrier in the anaerobic biofilter, aerobic biological fluid-bed in carrier to add volume be 20%~30% of reactor volume.Inoculation of activated-sludge in the reactor drum, through about 15 days domestications and extension film, reactor drum can get into the commencement of commercial operation stage.
4, getting into the DF film device by effusive liquid in the bio-reactor handles.
Wherein, the pH value with waste water in the step 1 is adjusted between 7.0~8.0, is owing to nitrococcus between this pH value scope is better than nitrobacteria growth ground.Nitrifier and nitrococcus all are aerobic bacterias, but nitrococcus is bigger than nitrifier to the avidity of oxygen, under the LDO condition, nitrous acid nitrogen can occur; Under LDO 1.0~2.0mgL-1 and pH value 7.0~8.0 conditions; Can suppress nitrobacteria growth, the enrichment nitrococcus is realized the accumulation of nitrite nitrogen; And nitrous acid nitrogen is converted into nitrogen with ammonia nitrogen or organic substrate as electron donor, thereby realizes the short-cut nitrification and denitrification denitrogenation.
Wherein, Employed biological products sorbent material is prepared from through following method in the step 2; At first collect jellyfish; Jellyfish described here is meant the jellyfish that belongs to Scyphozoa or sea wasp guiding principle arbitrarily, and like hydromedusan, siphonohore with do not belong to ctenophore and extra large cup of Scyphozoa cnidarian in interior tool medusoid.The jellyfish organism is shredded and mashes, make it become spawn.The pH that the jellyfish organism that 1000g chopping is mashed adds 1000~1500ml is about 13 sodium hydroxide solution and the epoxy chloropropane of 15~20ml; Reacted 10~12 hours down at 20 ℃ behind the stirring and evenly mixing; The pH value that reaction finishes to use regulator solution in the back obtains the gel suspended substance to neutral.In resulting gel suspended substance, add powdered sodium carbonate and aminating agent, the powdered sodium carbonate of adding and the ratio of aminating agent are respectively in the 1000ml gel suspended substance and add 10~15g powdered sodium carbonate, add 100~150ml aminating agent.Wherein said aminating agent can be two (tertbutyloxycarbonyl) amine or diformamide sodium salt.Amination reaction reacted 20~40 minutes down at 30~35 ℃ earlier; Be warming up to 60 ℃ of reactions 2 hours again, leave standstill after reaction finishes, cool to room temperature, using mass percent concentration then respectively is that 1% hydrochloric acid and 1% sodium hydroxide transfer to neutrality with the pH value; Suction filtration; Use the deionized water wash solid substance, ethanol dehydration again obtains described biological products sorbent material.The sorbent material that makes like this has the good adsorption ability to common heavy metal ion, and said common heavy metal ion comprises cupric ion, iron ion, mn ion, nickel ion, zine ion, chromium ion.
Wherein, the injected volume of sorbent material is to throw in 2~3 grams in every liter of required treatment liq.
Wherein, 8~10 hours anaerobic biofilter reactor drum waterpower residence time in the step 3, the aerobic fluidized-bed bioreactor hydraulic detention time is 6~7 hours.
Wherein, described in the step 3 is that the suspended biological carrier that raw material is processed is prepared from through following method with the Exocarpium cocois (Cocos nucifera L), with Exocarpium cocois (Cocos nucifera L) clean, oven dry, pulverization process, pulverize and reach 30~40 orders; Exocarpium cocois (Cocos nucifera L) particle after pulverizing is carried out alkalinisation treatment: it is 15%~17% sodium hydroxide solution that this particle is placed massfraction, soaks 4~6h; Exocarpium cocois (Cocos nucifera L) after the alkalinisation treatment is carried out carrying out crosslinking reaction with excessive TGM 1 after the processed; Solid product and Trimethylamine 99 alcoholic solution that crosslinking reaction is generated carry out quaternary ammonium reaction, obtain solid product; Solid product is cleaned, drying get final product suspended biological carrier.
It is good through the removal effect of overtesting counterweight metal that this cover of the present invention contains the treatment unit and the method for heavy metal coal mine waste water; And employed sorbent material has the characteristics of economic environmental protection; Can solve the problem that the jellyfish outburst of present coastland is caused disaster on the one hand; Adsorption of Heavy Metal Ions effectively has the effect of killing two birds with one stone on the other hand.And after effectively removing heavy metal ion early stage, can guarantee that following adopted biological respinse method handles waste water, thereby obtain the effect of removing COD and nitrogen phosphorus preferably.Whole system surpasses 99% to the clearance of ss suspended solid in addition, and colourity is also had bigger improvement.Device of the present invention has higher volumetric loading and impact resistance, and the single unit system floor space is little, does not need mud to reflux, and operational management is convenient, and Treatment Stability is high.
Embodiment
The analytical procedure of using among the present invention: adopt potassium dichromate process to measure COD; Adopt Potassium Persulphate oxidation---determined by ultraviolet spectrophotometry total nitrogen (TN); Adopt the filter paper filtering weighting method to measure suspended substance (SS); Adopt PHS-3C type Accurate pH instrumentation to decide the pH value; Adopt spectrophotometer method to measure the content of cupric ion, iron ion and mn ion.
Embodiment 1
Experimental water is taken from the waste water of mine of Yangquan, Shanxi Xin Jing.The pH value 9.5 of water inlet, the COD value 330mg/l of water inlet, the TN value 140mg/l of water inlet, the SS value 3200mg/l of water inlet, the content of cupric ion, iron ion and mn ion is respectively 60.5mg/L, 120mg/L and 91mg/L.
Pending waste water is introduced the adjusting settling tank, use hydrochloric acid soln that the pH value is adjusted to 7.5.
The water outlet of pH value equalizing tank gets into the heavy metal adsorption tank, places the described biological products sorbent material of being processed by the jellyfish organism on the draw-in groove of the rotary type layering keel frame in the heavy metal adsorption tank.The hydraulic detention time of heavy metal adsorption tank is 5 hours.The injected volume of sorbent material is to throw in 2.5 grams in every liter of required treatment liq.The speed of rotation of the rotary keel in the heavy metal adsorption tank is PM 2 circles.
The effluent of heavy metal adsorption tank flows in the bio-reactor, and 2 bio-reactors are set altogether, is respectively anaerobic biofilter, aerobic biological fluid-bed.These two reactor drums all adopt biomembrance process, connect between said two reactor drums.Add biofilm carrier in the reactor drum; Employed carrier is for being the suspended biological carrier that raw material is processed with the Exocarpium cocois (Cocos nucifera L); To add volume be 55% of reactor volume to carrier in the anaerobic biofilter, aerobic biological fluid-bed in carrier to add volume be 30% of reactor volume.Active sludge in the reactor drum is through domestication and extension film.8 hours anaerobic biofilter reactor drum waterpower residence time, the aerobic fluidized-bed bioreactor hydraulic detention time is 6 hours.
Get into the DF film device by effusive liquid in the bio-reactor.The DF film device is available from the DF film reaction device of attending Water Management Equipment Ltd. in morning of Hisense.
The wherein employed biological products sorbent material of being processed by the jellyfish organism is produced by following mode:
At first collect jellyfish, jellyfish described here is meant the jellyfish that belongs to Scyphozoa or sea wasp guiding principle arbitrarily, and like hydromedusan, siphonohore with do not belong to ctenophore and extra large cup of Scyphozoa cnidarian in interior tool medusoid.The jellyfish organism is shredded and mashes, make it become spawn.The pH that the jellyfish organism that 1000g chopping is mashed adds 1000ml is about 13 sodium hydroxide solution and the epoxy chloropropane of 15ml; Reacted 10 hours down at 20 ℃ behind the stirring and evenly mixing; The pH value that reaction finishes to use regulator solution in the back obtains the gel suspended substance to neutral.In resulting gel suspended substance, add powdered sodium carbonate and aminating agent, the powdered sodium carbonate of adding and the ratio of aminating agent are respectively and add the 12g powdered sodium carbonate in the 1000ml gel suspended substance, add the 120ml aminating agent.The aminating agent that wherein adds is two (tertbutyloxycarbonyl) amine.Amination reaction reacted 30 minutes down at 33 ℃ earlier; Be warming up to 60 ℃ of reactions 2 hours again, leave standstill after reaction finishes, cool to room temperature, using mass percent concentration then respectively is that 1% hydrochloric acid and 1% sodium hydroxide transfer to neutrality with the pH value; Suction filtration; Use the deionized water wash solid substance, ethanol dehydration again obtains described biological products sorbent material.
After the heavy metal adsorption tank, the content of cupric ion, iron ion and mn ion is respectively 0.12mg/L, 0.21mg/L and 0.32mg/L.Such heavy metal content can not have influence in the bio-reactor microbial growth and breed.
Each item index of handling effluent afterwards through the DF film device is: pH value 7.3, and COD value 46mg/l, TN value 12mg/l, SS value 70mg/l, the content of cupric ion, iron ion and mn ion is respectively 0.07mg/L, 0.16mg/L and 0.12mg/L.
Embodiment 2
Experimental water is taken from the waste water of mine of Yangquan, Shanxi Xin Jing.The pH value 9.2 of water inlet, the COD value 245mg/l of water inlet, the TN value 150mg/l of water inlet, the SS value 5400mg/l of water inlet, the content of cupric ion, iron ion and mn ion is respectively 135mg/L, 110mg/L and 102mg/L.
Pending waste water is introduced the adjusting settling tank, use hydrochloric acid soln that the pH value is adjusted to 7.5.
The water outlet of pH value equalizing tank gets into the heavy metal adsorption tank, places the described biological products sorbent material of being processed by the jellyfish organism on the draw-in groove of the rotary type layering keel frame in the heavy metal adsorption tank.The hydraulic detention time of heavy metal adsorption tank is 7 hours.The injected volume of sorbent material is to throw in 3 grams in every liter of required treatment liq.The speed of rotation of the rotary keel in the heavy metal adsorption tank is PM 1 circle.
The effluent of heavy metal adsorption tank flows in the bio-reactor, and 2 bio-reactors are set altogether, is respectively anaerobic biofilter, aerobic biological fluid-bed.These two reactor drums all adopt biomembrance process, connect between said two reactor drums.Add biofilm carrier in the reactor drum; Employed carrier is for being the suspended biological carrier that raw material is processed with the Exocarpium cocois (Cocos nucifera L); To add volume be 50% of reactor volume to carrier in the anaerobic biofilter, aerobic biological fluid-bed in carrier to add volume be 25% of reactor volume.Active sludge in the reactor drum is through domestication and extension film.10 hours anaerobic biofilter reactor drum waterpower residence time, the aerobic fluidized-bed bioreactor hydraulic detention time is 7 hours.
Get into the DF film device by effusive liquid in the bio-reactor.The DF film device is available from the DF film reaction device of attending Water Management Equipment Ltd. in morning of Hisense.
The wherein employed biological products sorbent material of being processed by the jellyfish organism is produced by following mode:
At first collect jellyfish, jellyfish described here is meant the jellyfish that belongs to Scyphozoa or sea wasp guiding principle arbitrarily, and like hydromedusan, siphonohore with do not belong to ctenophore and extra large cup of Scyphozoa cnidarian in interior tool medusoid.The jellyfish organism is shredded and mashes, make it become spawn.The pH that the jellyfish organism that 1000g chopping is mashed adds 1500ml is about 13 sodium hydroxide solution and the epoxy chloropropane of 13ml; Reacted 11 hours down at 25 ℃ behind the stirring and evenly mixing; The pH value that reaction finishes to use regulator solution in the back obtains the gel suspended substance to neutral.In resulting gel suspended substance, add powdered sodium carbonate and aminating agent, the powdered sodium carbonate of adding and the ratio of aminating agent are respectively and add the 15g powdered sodium carbonate in the 1000ml gel suspended substance, add the 140ml aminating agent.The aminating agent that wherein adds is the diformamide sodium salt.Amination reaction reacted 40 minutes down at 30 ℃ earlier; Be warming up to 60 ℃ of reactions 2 hours again, leave standstill after reaction finishes, cool to room temperature, using mass percent concentration then respectively is that 1% hydrochloric acid and 1% sodium hydroxide transfer to neutrality with the pH value; Suction filtration; Use the deionized water wash solid substance, ethanol dehydration again obtains described biological products sorbent material.
After the heavy metal adsorption tank, the content of cupric ion, iron ion and mn ion is respectively 0.21mg/L, 0.24mg/L and 0.29mg/L.Such heavy metal content can not have influence in the bio-reactor microbial growth and breed.
Each item index of handling effluent afterwards through the DF film device is: pH value 7.2, and COD value 34mg/l, TN value 10mg/l, SS value 66mg/l, the content of cupric ion, iron ion and mn ion is respectively 0.1mg/L, 0.12mg/L and 0.11mg/L.
Those skilled in the art can make replacement or modification to content of the present invention according to content disclosed by the invention and the art technology of being grasped; But these replacements or modification should not be regarded as breaking away from the present invention's design, and these replacements or modification are all in the interest field that the present invention requires to protect.

Claims (9)

1. a treatment unit that contains heavy metal coal mine waste water is characterized in that said device comprises following a few part: pH value equalizing tank, heavy metal adsorption tank, anaerobic biofilter, aerobic biological fluid-bed, DF film device.
2. the treatment unit that contains heavy metal coal mine waste water described in the claim 1; It is characterized in that wherein being provided with rotary type layering keel frame in the heavy metal adsorption tank; The keel frame is provided with the draw-in groove of placing sorbing material, and this layering keel frame can rotate with certain speed, and speed of rotation is at PM 1~3 circle; Employed sorbent material is the biological products sorbent material in the heavy metal adsorption tank; Connect between said two reactor drums, add biofilm carrier in the reactor drum, employed carrier is for being the suspended biological carrier that raw material is processed with the Exocarpium cocois (Cocos nucifera L).
3. the treatment unit that contains heavy metal coal mine waste water described in the claim 2 is characterized in that described biological products sorbent material is prepared from through following method, at first collects jellyfish; With jellyfish organism chopping and mash, make it become spawn, the pH that the jellyfish organism that the 1000g chopping is mashed adds 1000~1500ml is about 13 sodium hydroxide solution and the epoxy chloropropane of 15~20ml; Reacted 10~12 hours down at 20 ℃ behind the stirring and evenly mixing; The pH value that reaction finishes to use regulator solution in the back obtains the gel suspended substance to neutral, in resulting gel suspended substance, adds powdered sodium carbonate and aminating agent in the ratio that adds 10~15g powdered sodium carbonate, 100~150ml aminating agent in the 1000ml gel suspended substance; Amination reaction reacted 20~40 minutes down at 30~35 ℃ earlier; Be warming up to 60 ℃ of reactions 2 hours again, leave standstill after reaction finishes, cool to room temperature, using mass percent concentration then respectively is that 1% hydrochloric acid and 1% sodium hydroxide transfer to neutrality with the pH value; Suction filtration; Use the deionized water wash solid substance, ethanol dehydration again obtains described biological products sorbent material.
4. the treatment unit that contains heavy metal coal mine waste water described in the claim 3 is characterized in that described biological products sorbent material employed aminating agent in the preparation process is two (tertbutyloxycarbonyl) amine or diformamide sodium salt.
5. the treatment unit that contains heavy metal coal mine waste water described in the claim 2; It is characterized in that the described suspended biological carrier that with the Exocarpium cocois (Cocos nucifera L) is raw material is processed is prepared from through following method; With Exocarpium cocois (Cocos nucifera L) clean, oven dry, pulverization process, pulverize and reach 30~40 orders; Exocarpium cocois (Cocos nucifera L) particle after pulverizing is carried out alkalinisation treatment: it is 15%~17% sodium hydroxide solution that this particle is placed massfraction, soaks 4~6h; Exocarpium cocois (Cocos nucifera L) after the alkalinisation treatment is carried out carrying out crosslinking reaction with excessive TGM 1 after the processed; Solid product and Trimethylamine 99 alcoholic solution that crosslinking reaction is generated carry out quaternary ammonium reaction, obtain solid product; Solid product is cleaned, drying get final product suspended biological carrier.
6. one kind contains heavy metal coal mine wastewater treatment method, it is characterized in that said method comprising the steps of:
(1) pending waste water is introduced pH value equalizing tank, use the pH regulator agent that the pH value is adjusted between 7.0~8.0.The original acid-basicity different according to processing waste water, aqua calcis and hydrochloric acid soln are selected in the pH regulator agent for use;
(2) water outlet of pH value equalizing tank gets into the heavy metal adsorption tank, places sorbent material on the draw-in groove of the rotary type layering keel frame in the heavy metal adsorption tank, and sorbent material adopts the biological products sorbent material, and the hydraulic detention time of heavy metal adsorption tank is 4~8 hours;
(3) effluent of heavy metal adsorption tank flows in the bio-reactor, and 2 bio-reactors are set altogether, is respectively anaerobic biofilter, aerobic biological fluid-bed; These two reactor drums all adopt biomembrance process, connect between said two reactor drums, add biofilm carrier in the reactor drum; Employed carrier is for being the suspended biological carrier that raw material is processed with the Exocarpium cocois (Cocos nucifera L); To add volume be 50%~55% of reactor volume to carrier in the anaerobic biofilter, aerobic biological fluid-bed in carrier to add volume be 20%~30% of reactor volume, inoculation of activated-sludge in the reactor drum; Through about 15 days domestications and extension film, reactor drum can get into the commencement of commercial operation stage;
(4) getting into the DF film device by effusive liquid in the bio-reactor handles.
7. contain heavy metal coal mine wastewater treatment method described in the claim 6, it is characterized in that the biological products sorbent material that uses in the step (2) wherein is prepared from through following method, at first collects jellyfish; With jellyfish organism chopping and mash, make it become spawn, the pH that the jellyfish organism that the 1000g chopping is mashed adds 1000~1500ml is about 13 sodium hydroxide solution and the epoxy chloropropane of 15~20ml; Reacted 10~12 hours down at 20 ℃ behind the stirring and evenly mixing; The pH value that reaction finishes to use regulator solution in the back obtains the gel suspended substance to neutral, in resulting gel suspended substance, adds powdered sodium carbonate and aminating agent in the ratio that adds 10~15g powdered sodium carbonate, 100~150ml aminating agent in the 1000ml gel suspended substance; Amination reaction reacted 20~40 minutes down at 30~35 ℃ earlier; Be warming up to 60 ℃ of reactions 2 hours again, leave standstill after reaction finishes, cool to room temperature, using mass percent concentration then respectively is that 1% hydrochloric acid and 1% sodium hydroxide transfer to neutrality with the pH value; Suction filtration; Use the deionized water wash solid substance, ethanol dehydration again obtains described biological products sorbent material.
8. contain heavy metal coal mine wastewater treatment method described in the claim 7, it is characterized in that described biological products sorbent material employed aminating agent in the preparation process is two (tertbutyloxycarbonyl) amine or diformamide sodium salt.
9. contain heavy metal coal mine wastewater treatment method described in the claim 6; It is characterized in that wherein the middle suspended biological carrier of processing as raw material with Exocarpium cocois (Cocos nucifera L) that uses of step (3) is prepared from through following method; With Exocarpium cocois (Cocos nucifera L) clean, oven dry, pulverization process, pulverize and reach 30~40 orders; Exocarpium cocois (Cocos nucifera L) particle after pulverizing is carried out alkalinisation treatment: it is 15%~17% sodium hydroxide solution that this particle is placed massfraction, soaks 4~6h; Exocarpium cocois (Cocos nucifera L) after the alkalinisation treatment is carried out carrying out crosslinking reaction with excessive TGM 1 after the processed; Solid product and Trimethylamine 99 alcoholic solution that crosslinking reaction is generated carry out quaternary ammonium reaction, obtain solid product; Solid product is cleaned, drying get final product suspended biological carrier.
CN 201210337391 2012-09-13 2012-09-13 Device and method for processing coal mine wastewater containing heavy metal Pending CN102826717A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964642A (en) * 2014-05-16 2014-08-06 山西清泽环境科技有限公司 Wastewater treatment method for coal mine
CN104671624A (en) * 2015-02-10 2015-06-03 江苏金山环保科技股份有限公司 Processing method of low-cost heavy metal-containing sludge
KR101542794B1 (en) * 2014-10-31 2015-08-13 강선우 Absorbent containing jellyfish
CN105198164A (en) * 2015-10-12 2015-12-30 桂林市春晓环保科技有限公司 Wastewater treatment device
CN109502900A (en) * 2018-12-04 2019-03-22 华南师范大学 A kind of Pb-Zn deposits beneficiation wastewater treatment for reuse Processes and apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964642A (en) * 2014-05-16 2014-08-06 山西清泽环境科技有限公司 Wastewater treatment method for coal mine
CN103964642B (en) * 2014-05-16 2016-04-06 山西清泽环境科技有限公司 A kind of coal mine wastewater treatment process
KR101542794B1 (en) * 2014-10-31 2015-08-13 강선우 Absorbent containing jellyfish
CN104671624A (en) * 2015-02-10 2015-06-03 江苏金山环保科技股份有限公司 Processing method of low-cost heavy metal-containing sludge
CN105198164A (en) * 2015-10-12 2015-12-30 桂林市春晓环保科技有限公司 Wastewater treatment device
CN109502900A (en) * 2018-12-04 2019-03-22 华南师范大学 A kind of Pb-Zn deposits beneficiation wastewater treatment for reuse Processes and apparatus

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