CN104445550A - Preparation method of heavy metal sewage treatment medicament - Google Patents
Preparation method of heavy metal sewage treatment medicament Download PDFInfo
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- CN104445550A CN104445550A CN201410636563.XA CN201410636563A CN104445550A CN 104445550 A CN104445550 A CN 104445550A CN 201410636563 A CN201410636563 A CN 201410636563A CN 104445550 A CN104445550 A CN 104445550A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
Abstract
The invention provides a preparation method of a heavy metal sewage treatment medicament. The preparation method comprises the following steps: preparing raw materials including barium sulfide, ferric sulfate, polymeric silicate aluminum sulfate, calcium hydroxide and lithopone; adding barium sulfide, ferric sulfate and polymeric silicate aluminum sulfate into a reactor; stirring and heating to 120 DEG C, and carrying out backflow for 6-9 hours while maintaining the reaction temperature at 110-130 DEG C; adding water to dilute calcium hydroxide, and adequately stirring the solution with dried jelly; carrying out boiling reaction at 100 DEG C, so as to prepare a mother solution; filtering the mother solution after the reaction to obtain filtrate for later use, and recycling filter residues; cooling the mother solution at the room temperature, adding lithopone into the reactor, uniformly stirring until initial condensation; heating at 60-80 DEG C for 1-3 hours, stirring for 15 minutes, and using at 5-50 DEG C. The heavy metal sewage treatment medicament is wide in application range, good in sedimentation effect, water purification quality, dehydration property, compression property and effluent quality and low in treatment cost and can serve as a dehydration flocculant.
Description
Technical field
The invention belongs to the technical field of water treatment, in particular to a kind of preparation method of the water treatment agent for the treatment of heavy metal containing sewage.
Background technology
Sewage disposal technology has a very important role to water saving, the problem such as energy-conservation, but also affects to environment in the use procedure of sewage treatment drug simultaneously.In cooling water system, water temperature is higher than under the various occasions of envrionment temperature, and the fouling of the inorganic salt such as calcium carbonate can bring serious consequence.In recent years, in water treatment field, the water technology of using basic, non-adjust ph is growing, wherein adds corrosion-mitigation scale-inhibition medicament, low-phosphorous, without phosphorus formula application more and more extensive, without phosphorus Green Water treatment agent has become the hot subject of domestic and international water conditioner research aspect.Scientific utilization water treatment agent can effectively protection against corrosion and prevent fouling, thus the utilization ratio of raising equipment and water and reach the object of saving water source and the energy.
In addition, in various water system, inevitably there are various source of pollution, particularly some microorganisms are as bacterium algae, can spread by large-scale breeding, havoc water quality, and produce great corrosion failure effect to the container of storage of water system.
Current, environment protection has become the problem of World Focusing, and the emission request of industrial sewage is strict; country takes corresponding compulsory measure; seek a kind of effective sewage-treating agent, can reach sewage discharge requirement after can making sewage disposal, be numerous enterprises urgent need to solve the problem.
Chemical precipitation method is extensively used in sewage disposal, it in waste water, adds some chemical agent make it and Pollutants in Wastewater generation chemical reaction, form the solid product of indissoluble, then carry out solid-liquid separation, thus a kind of method of removing water pollutant.At present in some industries, as black water, oil-containing wastewater, dyeing waste water, paper waste etc. the medicament that adopts, poor processing effect, settling velocity are slow, and medicament expense is higher, and some enterprise also causes equipment heavy corrosion.
Colliery aborning, produces a large amount of black waters, if do not processed in time will cause severe contamination to these water.The process of existing slime water treatment method many employings adding medicine, polyaddition aluminum chloride or calcium chloride and polyacrylamide coupling in black water, precipitation is administered.Owing to introducing chlorion in a large number, thus cause equipment heavy corrosion.
Oil extraction in oil field factory recovered water is with crude oil from reservoir exploitation out, not only crude oil is carried in waste water, the various salt in stratum and gas is also flow in the oil reservoir of High Temperature High Pressure, in oil recovery process, from stratum, carry out many suspended solidss again, therefore, the feature of oil field extracted water be not only COD and oil-contg high, and temperature is high, salinity is high.Many employing dosing sedimentation and filtration methods process now, dosing mostly is polymeric aluminum, and ubiquity problem is that treatment effect is bad.
Be in the patent of 201010591583.1 at application number, disclose a kind of sewage-treating agent, use this treatment agent process trade effluent, it comprises zeolite powder, wilkinite, hydrochloric acid, ferric sulfate, magnesium sulfate, kaolin; Weight ratio between each component is: 1: 0.2-0.4: 1: 0.05-1: 0.3-0.4; Zeolite powder and bentonitic weight ratio are 0.7-1-0.3-1.
And disclose a kind of preparation method of sewage-treating agent, comprise the following steps:
(1) zeolite powder, wilkinite is taken according to the above ratio, hydrochloric acid, ferric sulfate, magnesium sulfate, kaolin;
(2) zeolite powder is put into the roasting of High Temperature Furnaces Heating Apparatus 500-600 degree, 20 minutes, be cooled to about 100;
(3) by the zeolite powder of high-temperature roasting and wilkinite, ferric sulfate, magnesium sulfate, kaolin puts into reactor mixing and stirring.
In the patent of application number 201110355989.4, Waste water treatment medicament is Al-Fe-Mg compound, and wherein Al3+ accounts for 30 ~ 40 parts, Fe3+ accounts for 20 ~ 30 parts, and Mg2+ accounts for 30 ~ 40 parts, also has a small amount of Mn2+ and lithopone, Mn2+ can use MnS04, accounts for 5 parts; Lithopone accounts for 5 parts, and Al3+ can add with Tai-Ace S 150 [Al2 (SO4) 3]; Fe3+ can add with [Fe2 (S04) 3]; Mg2+ can add with magnesium sulfate (MgSO4); Lithopone is the mixture of zinc sulphide and barium sulfate, and molecular formula is: ZnS+BaS04, and ratio is 3:7.
Compound method adopts general method Homogeneous phase mixing to form.(about 15 minutes) the whole dissolving that at room temperature stir can use.Use temperature is at 5 DEG C ~ 50 DEG C.
The ultimate principle of disposing of sewage is destroyed by the colloid in sewage.Exist in colloidal state containing a large amount of suspended substance, emulsification etc. in sewage.Use medicament of the present invention colloid surface charge neutralization in sewage can be fallen, thus destroy colloidal suspended substance and emulsification etc., make suspended substance rapid precipitation.
This Waste water treatment medicament is applicable to black water, oily(waste)water, dyeing waste water, paper waste, chemical industry and municipal effluent etc.After adding this medicament in sewage, suspended substance flocculates at once, and the alumen ustum of generation is large, and fast, efficiency is high, and Floc strength is high, and hydrophobic performance is good, is beneficial to press filtration for precipitation.Filter cake moisture content after press filtration is low, and quality is good.The medicament expense processing every cube of this medicament of sewage is only about 60 percent of other medicament expenses.
After this chemicals treatment, the pH value of solution is similar to neutrality 6.5 ~ 8.5, not containing Cl-ion, when after process Water circulation, effectively can protect the steel construction in aqueous systems, make it exempt from corrosion, therefore can reduce a large amount of equipment maintenance costs every year.This Waste water treatment medicament purity is high, inclusion-free, without dust, the aqueous solution is as clear as crystal.This medicament nontoxicity, on operator without impact, the problems such as the rear water non-secondary pollution of process.
Gained finished product of the present invention is added in 1:600 ratio and needs, in water body to be processed, in actual water body process, to carry out Preliminary Applications, obtain good effect.After applying finished product of the present invention, a good removing effect is reached for the nuisance mass-energy in waste water except heavy metal, when especially processing industrial circulate water, deposit the problem being difficult to eliminate objectionable impurities.Effect is as follows: effectively removal heavy metal reaches more than 85 parts, and COD clearance reaches more than 90 parts, and BOD removal rate is up to more than 92 parts.
Existing water technology processes objectionable impuritiess such as the heavy metals in trade effluent, and a good removing effect can not be reached for the objectionable impurities in waste water except heavy metal, deposit the problem being difficult to eliminate objectionable impurities when especially processing industrial circulate water.In existing wastewater treatment also there is the problems such as poor processing effect, settling velocity is slow, cost is high, equipment heavy corrosion in institute's with medicament.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide the preparation method of a kind of high-level efficiency, low cost, wide, corrosion-free, the avirulent Waste water treatment medicament of adaptation.
For achieving the above object, the invention provides a kind of preparation method of heavy metal-polluted water treatment agent, comprise the following steps:
(1) by weight, raw material is prepared: barium sulphide 30-40 part, ferric sulfate 20-30 part, polymeric aluminum sulfate silicate 20-40 part, 5 parts, calcium hydroxide, lithopone 5 parts.；
(2) barium sulphide 30-40 part is added in the reactor, ferric sulfate 20-30 part, polymeric aluminum sulfate silicate 20-40 part;
(3) be heated with stirring to 120 DEG C, maintenance temperature of reaction is 110-130 DEG C, backflow 6-9 hour;
(4) 5 parts, thin up calcium hydroxide, fully stirs with dried jelly;
(5) at temperature 100 DEG C of boiling reaction 5-10 hour, mother liquor is made;
(6) reacted mother liquor leaches, and filtrate is for subsequent use, filter residue recycling;
(7) cool mother liquor under normal temperature condition, add lithopone 5 parts in the reactor, uniform stirring 0.5-1 is little of initial set;
(8) at 60 DEG C of-80 DEG C of temperature, heat 1-3 hour, stir 15 minutes, use at 5-50 DEG C.
Further, in medicament, the weight percent of each component is as follows: barium sulphide accounts for 35-40 part, and ferric sulfate accounts for 25-30 part, and polymeric aluminum sulfate silicate accounts for 30-40 part, and calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
Further, in medicament, the weight percent of each component is as follows: barium sulphide accounts for 35 parts, and ferric sulfate accounts for 30 parts, and polymeric aluminum sulfate silicate accounts for 25 parts, and calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
Further, barium sulphide accounts for 30 parts, and ferric sulfate accounts for 30 parts, and polymeric aluminum sulfate silicate accounts for 30 parts, and calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
Further, barium sulphide accounts for 40 parts, and ferric sulfate accounts for 20 parts, and polymeric aluminum sulfate silicate accounts for 30 parts, and calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
The invention has the beneficial effects as follows:
Tool of the present invention has the following advantages:
1, use range is wide, and universality is strong
This sewage treatment drug all has good result to the trade effluents such as metallurgy, heavy metal, mine, printing and dyeing, weaving, building, casting, chemical industry, electric power, leather and papermaking and the sewage disposal of city integrated property.The pH scope adapting to water quality is wide, and pH value all has decontamination effect improving within the scope of 4-10.
2, sedimentation effect is good
After adding this medicament in sewage, coagulating is rapid, and Floc strength is high, and fast, easily clarify layering, efficiency is high for precipitation.
3, water purification quality is good, and processing cost is low
Dewatering and good compression property, can do dehydration flocculant, and effluent characteristics is good, and the clear water after purification can reuse.Medicament expense is only about 50 parts of other medicament expenses, can be that each large enterprises are effectively cost-saving.
4, non-corrosiveness
After this chemicals treatment, the pH value of solution is at 6.5-8.5, is similar to neutrality, not chloride ion-containing, effectively can protect the steel construction in aqueous systems, make it exempt from corrosion, therefore can reduce a large amount of equipment maintenance costs every year during recycling.
Embodiment
For making the object of the embodiment of the present invention and technical scheme clearly, be clearly and completely described to the technical scheme of the embodiment of the present invention below.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Embodiment 1:
A kind of heavy metal-polluted water treatment agent, it is characterized in that: this sewage treatment drug is formed by barium sulphide, ferric sulfate, polymeric aluminum sulfate silicate and a small amount of calcium hydroxide and lithopone mixed preparing, its weight proportion is: barium sulphide accounts for 35 parts, ferric sulfate accounts for 25 parts, polymeric aluminum sulfate silicate accounts for 30 parts, calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
(1) by weight, raw material is prepared: barium sulphide 35 parts, 25 parts, ferric sulfate, polymeric aluminum sulfate silicate 30 parts, 5 parts, calcium hydroxide, lithopone 5 parts.；
(2) barium sulphide 35 parts is added in the reactor, 25 parts, ferric sulfate, polymeric aluminum sulfate silicate 30 parts;
(3) be heated with stirring to 120 DEG C, keep temperature of reaction to be 125 DEG C, reflux 6 hours;
(4) 5 parts, thin up calcium hydroxide, fully stirs with dried jelly;
(5) temperature 100 DEG C of boiling reactions 6 hours, mother liquor is made;
(6) reacted mother liquor leaches, and filtrate is for subsequent use, filter residue recycling;
(7) cool mother liquor under normal temperature condition, add lithopone 5 parts in the reactor, uniform stirring 0.5 is little of initial set;
(8) heat 1 hour at 60 DEG C of temperature, stir 15 minutes, use at 5-10 DEG C.
Embodiment 2:
A kind of heavy metal-polluted water treatment agent, it is characterized in that: this sewage treatment drug is formed by barium sulphide, ferric sulfate, polymeric aluminum sulfate silicate and a small amount of calcium hydroxide and lithopone mixed preparing, its weight proportion is: barium sulphide accounts for 33 parts, ferric sulfate accounts for 22 parts, polymeric aluminum sulfate silicate accounts for 35 parts, calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
(1) by weight, raw material is prepared: barium sulphide 33 parts, 22 parts, ferric sulfate, polymeric aluminum sulfate silicate 35 parts, 5 parts, calcium hydroxide, lithopone 5 parts.；
(2) barium sulphide 33 parts is added in the reactor, 22 parts, ferric sulfate, polymeric aluminum sulfate silicate 35 parts;
(3) be heated with stirring to 120 DEG C, keep temperature of reaction to be 130 DEG C, reflux 8 hours;
(4) 5 parts, thin up calcium hydroxide, fully stirs with dried jelly;
(5) temperature 100 DEG C of boiling reactions 8 hours, mother liquor is made;
(6) reacted mother liquor leaches, and filtrate is for subsequent use, filter residue recycling;
(7) cool mother liquor under normal temperature condition, add lithopone 5 parts in the reactor, uniform stirring 1 is little of initial set;
(8) heat 2 hours at 70 DEG C of temperature, stir 30 minutes, use at 15-25 DEG C.
Embodiment 3:
A kind of heavy metal-polluted water treatment agent, it is characterized in that: this sewage treatment drug is formed by barium sulphide, ferric sulfate, polymeric aluminum sulfate silicate and a small amount of calcium hydroxide and lithopone mixed preparing, its weight proportion is: barium sulphide accounts for 37 parts, ferric sulfate accounts for 20 parts, polymeric aluminum sulfate silicate accounts for 33 parts, calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
(1) by weight, raw material is prepared: barium sulphide 37 parts, 20 parts, ferric sulfate, polymeric aluminum sulfate silicate 33 parts, 5 parts, calcium hydroxide, lithopone 5 parts.；
(2) barium sulphide 37 parts is added in the reactor, 20 parts, ferric sulfate, polymeric aluminum sulfate silicate 33 parts;
(3) be heated with stirring to 120 DEG C, keep temperature of reaction to be 115 DEG C, reflux 9 hours;
(4) 5 parts, thin up calcium hydroxide, fully stirs with dried jelly;
(5) temperature 100 DEG C of boiling reactions 10 hours, mother liquor is made;
(6) reacted mother liquor leaches, and filtrate is for subsequent use, filter residue recycling;
(7) cool mother liquor under normal temperature condition, add lithopone 5 parts in the reactor, uniform stirring 1 is little of initial set;
(8) heat 2.5 hours at 80 DEG C of temperature, stir 15 minutes, use at 5-35 DEG C.
Clear water respectively for waste water before treatment and solid-liquid separation detects COD, BOD and SS (suspended substance in water quality), and detects total nitrogen, total phosphorus and ammonia-nitrogen content, and result is as follows:
COD and BOD drops to 1100mg/L and 250mg/L by initial 10000mg/L and 3590mg/L respectively, COD and BOD clearance reaches 89 parts and 93 parts respectively;
SS drops to 280mg/L by initial 3386mg/L, and SS clearance reaches 92 parts;
Total nitrogen content drops to 22mg/L by 66.5mg/L, and total phosphorous drops to 1.0mg/L by 11.1mg/L, and ammonia-nitrogen content drops to 7.5mg/L by 15.6mg/L.
Apparent effect measuring:
Before process, chroma in waste water is 2000 times, and the clear water colourity after process is less than 36 times;
Compared to waste water before process, the foul odour of the clear water after process obviously alleviates;
Before process, chroma in waste water is 110 times, and the clear water colourity after process drops to 22 times;
Before process, turbidity of wastewater is 258NTU, and the clear water turbidity after process drops to 36NTU.
These are only embodiments of the present invention, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. a preparation method for heavy metal-polluted water treatment agent, is characterized in that, comprises the following steps:
(1) by weight, raw material is prepared: barium sulphide 30-40 part, ferric sulfate 20-30 part, polymeric aluminum sulfate silicate 20-40 part, 5 parts, calcium hydroxide, lithopone 5 parts;
(2) barium sulphide 30-40 part is added in the reactor, ferric sulfate 20-30 part, polymeric aluminum sulfate silicate 20-40 part;
(3) be heated with stirring to 120 DEG C, maintenance temperature of reaction is 110-130 DEG C, backflow 6-9 hour;
(4) 5 parts, thin up calcium hydroxide, fully stirs with dried jelly;
(5) at temperature 100 DEG C of boiling reaction 5-10 hour, mother liquor is made;
(6) reacted mother liquor leaches, and filtrate is for subsequent use, filter residue recycling;
(7) cool mother liquor under normal temperature condition, add lithopone 5 parts in the reactor, uniform stirring 0.5-1 is little of initial set;
(8) at 60 DEG C of-80 DEG C of temperature, heat 1-3 hour, stir 15 minutes, use at 5-50 DEG C.
2. the preparation method of a kind of heavy metal-polluted water treatment agent according to claim 1, it is characterized in that, in medicament, the weight percent of each component is as follows: barium sulphide accounts for 35-40 part, ferric sulfate accounts for 25-30 part, polymeric aluminum sulfate silicate accounts for 30-40 part, and calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
3. the preparation method of a kind of heavy metal-polluted water treatment agent according to claim 1, it is characterized in that, in medicament, the weight percent of each component is as follows: barium sulphide accounts for 35 parts, ferric sulfate accounts for 30 parts, polymeric aluminum sulfate silicate accounts for 25 parts, and calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
4. the preparation method of a kind of heavy metal-polluted water treatment agent according to claim 1, it is characterized in that, barium sulphide accounts for 30 parts, and ferric sulfate accounts for 30 parts, and polymeric aluminum sulfate silicate accounts for 30 parts, and calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
5. the preparation method of a kind of heavy metal-polluted water treatment agent according to claim 1, it is characterized in that, barium sulphide accounts for 40 parts, and ferric sulfate accounts for 20 parts, and polymeric aluminum sulfate silicate accounts for 30 parts, and calcium hydroxide accounts for 5 parts, and lithopone accounts for 5 parts.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105036275A (en) * | 2015-08-28 | 2015-11-11 | 邓忆凯 | Composite flocculant for wastewater treatment and preparation method thereof |
| CN105084485A (en) * | 2015-08-28 | 2015-11-25 | 邓忆凯 | High-efficient waste water flocculant and preparation method thereof |
| CN107098406A (en) * | 2017-05-14 | 2017-08-29 | 安徽泛亚环保科技有限公司 | A kind of domestic sewage treating compound and its production method |
| CN107117694A (en) * | 2017-05-14 | 2017-09-01 | 安徽泛亚环保科技有限公司 | A kind of purification of waste water special agent and its production method |
| CN107128982A (en) * | 2017-05-14 | 2017-09-05 | 安徽泛亚环保科技有限公司 | A kind of commercial metal effluent purifying medicament and its production method |
| CN107162207A (en) * | 2017-05-14 | 2017-09-15 | 安徽泛亚环保科技有限公司 | It is a kind of to reduce the medicament and its production method of sanitary sewage COD value |
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| CN109731897A (en) * | 2019-01-24 | 2019-05-10 | 湖州师范学院 | The method of restoration of soil polluted by heavy metal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105036275A (en) * | 2015-08-28 | 2015-11-11 | 邓忆凯 | Composite flocculant for wastewater treatment and preparation method thereof |
| CN105084485A (en) * | 2015-08-28 | 2015-11-25 | 邓忆凯 | High-efficient waste water flocculant and preparation method thereof |
| CN107098406A (en) * | 2017-05-14 | 2017-08-29 | 安徽泛亚环保科技有限公司 | A kind of domestic sewage treating compound and its production method |
| CN107117694A (en) * | 2017-05-14 | 2017-09-01 | 安徽泛亚环保科技有限公司 | A kind of purification of waste water special agent and its production method |
| CN107128982A (en) * | 2017-05-14 | 2017-09-05 | 安徽泛亚环保科技有限公司 | A kind of commercial metal effluent purifying medicament and its production method |
| CN107162207A (en) * | 2017-05-14 | 2017-09-15 | 安徽泛亚环保科技有限公司 | It is a kind of to reduce the medicament and its production method of sanitary sewage COD value |
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