CN108017130A - A kind of environment-friendly type aquiculture sewerage composite flocculation agent and its preparation method and application - Google Patents

A kind of environment-friendly type aquiculture sewerage composite flocculation agent and its preparation method and application Download PDF

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Publication number
CN108017130A
CN108017130A CN201711320620.3A CN201711320620A CN108017130A CN 108017130 A CN108017130 A CN 108017130A CN 201711320620 A CN201711320620 A CN 201711320620A CN 108017130 A CN108017130 A CN 108017130A
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China
Prior art keywords
reagent
parts
water
flocculation agent
iii
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Application number
CN201711320620.3A
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Chinese (zh)
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CN108017130B (en
Inventor
李彬
麦裕良
吕冉
肖盈
张靖雯
刘婉玉
文武
高敏
张磊
熊文杰
胡小勇
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Institute of Chemical Engineering of Guangdong Academy of Sciences
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Guangdong Petroleum And Fine Chemical Research Institute
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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
    • 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
    • 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
    • C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
    • 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
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a kind of environment-friendly type aquiculture sewerage composite flocculation agent and its preparation method and application.This composite flocculation agent, including tri- components of reagent I, II, III, each component are made of the raw material of following mass parts respectively：Reagent I：Quaternized 50~150 parts of tannin；0.5~2 part of chitosan；800~1200 parts of water；Reagent II：50~150 parts of magnesium sulfate；800~1200 parts of water；Reagent III：7~9 parts of xanthans；1~3 part of guar gum；50~100 parts of magnesium sulfate；800~1200 parts of water.The preparation method of this composite flocculation agent is also disclosed that at the same time, also discloses a kind of flucculation process of application composite flocculation agent progress aquiculture sewerage.The aquiculture sewerage composite flocculation agent its preparation method of the present invention is simple, and the environmental protection of each component advantages of nontoxic raw materials, is readily biodegradable, flocculating effect is obvious.

Description

A kind of environment-friendly type aquiculture sewerage composite flocculation agent and its preparation method and application
Technical field
The present invention relates to a kind of environment-friendly type aquiculture sewerage composite flocculation agent and its preparation method and application.
Background technology
During high-density aquiculture, with the growth of feeding time, remaining feed and cultivation are dynamic in breeding water body Thing excreta increases, microbial growth etc., can cause the increase of breeding water body suspended matter, and water body is muddy.
The flocculants such as aluminium polychloride, bodied ferric sulfate and polyacrylamide can agglomerate suspended particulate in breeding water body Sedimentation, reduces water turbidity.But aluminium salt has human body and cultivated animals toxic side effect, molysite has corrosivity and influences water Body colour degree, polyacrylamide amine monomers have carcinogenicity and neurotoxicity.These unfavorable factors limit them and wad a quilt with cotton in aquaculture The use of solidifying aspect.
Therefore the flocculant used for aquiculture of exploitation asepsis environment-protecting is used to handle aquiculture sewerage, for high density aquatic products Cultivation is of great significance.
The content of the invention
It is an object of the invention to provide a kind of environment-friendly type aquiculture sewerage composite flocculation agent and preparation method thereof and answer With.
The technical solution used in the present invention is：
A kind of environment-friendly type aquiculture sewerage composite flocculation agent, including tri- components of reagent I, II, III, each component difference It is made of the raw material of following mass parts：
Reagent I：
Quaternized 50~150 parts of tannin；
0.5~2 part of chitosan；
800~1200 parts of water；
Reagent II：
50~150 parts of magnesium sulfate；
800~1200 parts of water；
Reagent III：
7~9 parts of xanthans；
1~3 part of guar gum；
50~100 parts of magnesium sulfate；
800~1200 parts of water.
In reagent I, quaternized tannin is quaternized acacia mearnsii tannin.
The preparation method of this environment-friendly type aquiculture sewerage composite flocculation agent, comprises the following steps：
1) weigh：Raw material is weighed by above-mentioned composition；
2) reagent preparation I：It is first that quaternized tannin is soluble in water, chitosan is added, is mixed, obtains reagent I；
3) reagent preparation II：Magnesium sulfate is soluble in water, stir evenly, obtain reagent II；
4) reagent preparation III：First xanthans, guar gum and magnesium sulfate are mixed, then obtained mixture is molten Yu Shuizhong, obtains reagent III；
5) stand：Reagent I, II and III for being made into are stood overnight, obtain environment-friendly type aquiculture sewerage composite flocculation Agent.
A kind of flucculation process of aquiculture sewerage, is that aquiculture sewerage alkali first is adjusted pH to 8~9；Again successively Reagent I, reagent II and the reagent III of composite flocculation agent are added, is stirred evenly；Then staticly settle.
In flucculation process, it is alkali metal hydroxide, alkali carbonate, alkali metal carbonic acid to adjust the alkali used in sewage pH At least one of hydrogen salt.
Per in 1L aquiculture sewerages, the dosage of reagent I is 1mL~5mL.
Per in 1L aquiculture sewerages, the dosage of reagent II is 2mL~8mL.
Per in 1L aquiculture sewerages, the dosage of reagent III is 0.5mL~2mL.
The beneficial effects of the invention are as follows：
The aquiculture sewerage composite flocculation agent its preparation method of the present invention is simple, and the environmental protection of each component advantages of nontoxic raw materials, is easy to Biodegradation, flocculating effect are obvious.
Brief description of the drawings
Fig. 1 is the flocculation treatment effect figure of embodiment 1；
Fig. 2 is the flocculation treatment effect figure of embodiment 2.
Embodiment
A kind of environment-friendly type aquiculture sewerage composite flocculation agent, including tri- components of reagent I, II, III, each component difference It is made of the raw material of following mass parts：
Reagent I：
Quaternized 50~150 parts of tannin；
0.5~2 part of chitosan；
800~1200 parts of water；
Reagent II：
50~150 parts of magnesium sulfate；
800~1200 parts of water；
Reagent III：
7~9 parts of xanthans；
1~3 part of guar gum；
50~100 parts of magnesium sulfate；
800~1200 parts of water.
In reagent I, quaternized tannin is quaternized acacia mearnsii tannin.
The preparation method of this environment-friendly type aquiculture sewerage composite flocculation agent, comprises the following steps：
1) weigh：Raw material is weighed by above-mentioned composition；
2) reagent preparation I：It is first that quaternized tannin is soluble in water, chitosan is added, is mixed, obtains reagent I；
3) reagent preparation II：Magnesium sulfate is soluble in water, stir evenly, obtain reagent II；
4) reagent preparation III：First xanthans, guar gum and magnesium sulfate are mixed, then obtained mixture is molten Yu Shuizhong, obtains reagent III；
5) stand：Reagent I, II and III for being made into are stood overnight, obtain environment-friendly type aquiculture sewerage composite flocculation Agent.
A kind of flucculation process of aquiculture sewerage, is that aquiculture sewerage alkali first is adjusted pH to 8~9；Again successively Reagent I, reagent II and the reagent III of composite flocculation agent are added, is stirred evenly；Then staticly settle.
Preferably, in flucculation process, it is alkali metal hydroxide, alkali carbonate, alkali to adjust the alkali used in sewage pH At least one of alkali metal bicarbonate salt；It is further preferred that adjust the alkali used in sewage pH be sodium hydroxide, potassium hydroxide, At least one of sodium carbonate, potassium carbonate, sodium acid carbonate, saleratus.
Preferably, per in 1L aquiculture sewerages, the dosage of reagent I is 1mL~5mL.
Preferably, per in 1L aquiculture sewerages, the dosage of reagent II is 2mL~8mL.
Preferably, per in 1L aquiculture sewerages, the dosage of reagent III is 0.5mL~2mL.
Present disclosure is described in further detail below by way of specific embodiment.
Embodiment 1：
The flocculant of embodiment 1 is prepared by the raw material of following mass parts.
Reagent I：
Quaternized 100 parts of tannin；
1 part of chitosan；
1000 parts of distilled water；
Reagent II：
100 parts of magnesium sulfate；
1000 parts of distilled water；
Reagent III：
9 parts of xanthans；
1 part of guar gum；
50 parts of magnesium sulfate；
1000 parts of distilled water.
Quaternized tannin used is quaternized acacia mearnsii tannin (Brazilian Seta companies).
The preparation method of 1 flocculant of embodiment, comprises the following steps：1) weigh：Raw material is weighed by above-mentioned composition；2) match somebody with somebody Reagent I processed：It is first that quaternized tannin is soluble in water, chitosan is added, is mixed, obtains reagent I；3) reagent preparation II： Magnesium sulfate is soluble in water, stir evenly, obtain reagent II；4) reagent preparation III：First by xanthans, guar gum and sulfuric acid Magnesium is mixed, then obtained mixture is soluble in water, obtains reagent III；5) stand：Reagent I, II and the III that will be made into Stand overnight, obtain the composite flocculation agent of embodiment 1.
The kaolin solution 100mL that concentration is 4/1000ths is taken, pH to 8.5 is adjusted with sodium hydroxide, adds 0.2mL reagents I, starts to stir, and adds 0.4mL reagent II, is eventually adding 0.1mL reagent III, continue stirring 5~after ten minutes stand it is heavy Form sediment.The flocculating effect of embodiment 1 is as shown in Figure 1.In Fig. 1, left side graduated cylinder is the kaolin solution of non-flocculation treatment, and the right is measured Cylinder is the kaolin solution after flocculation treatment of the present invention.After the present embodiment flocculant process, 4/1000ths kaolin is molten Liquid turbidity is reduced to 13NTU from 783NTU, and turbidity removal rate is up to 98.3%.
Embodiment 2：
Composition as described in embodiment 1 prepares flocculant, is then applied in Aster ericoidus Medaka aquaculture wastewater.
Aster ericoidus Medaka aquaculture wastewater 100mL is taken, pH to 8.5 is adjusted with sodium hydroxide, adds 0.3mL reagent I, start to stir Mix, add 0.4mL reagent II, be eventually adding 0.1mL reagent III, continue stirring 5~staticly settle after ten minutes.Embodiment 2 Flocculating effect as shown in Figure 2.In Fig. 2, left side graduated cylinder is the Aster ericoidus Medaka aquaculture wastewater of non-flocculation treatment, and the right graduated cylinder is Aster ericoidus Medaka aquaculture wastewater after flocculation treatment of the present invention.After the present embodiment flocculant process, Aster ericoidus Medaka aquaculture wastewater Turbidity is reduced to 41NTU from 166NTU, and turbidity removal rate is down to 1015mg/L up to 75.3%, COD from 1815mg/L, and removal rate reaches 44.1%.
Quaternized tanning solution used in flocculant of the present invention is in acidity, and chitosan is dissolvable in water wherein, in alkaline water body In, quaternized tannin and chitosan form floc sedimentation with magnesium sulfate.Xanthans, guar gum and magnesium sulfate add water after mixing In, water heat release is met plus magnesium sulfate, water temperature is improved, is more advantageous to the dissolving of xanthans and guar gum.Xanthans and melon That bean gum, chitosan play synergistic function with xanthans, and the floc sedimentation body that little particle is adhesive into bigger precipitates.The present invention Composite flocculation agent preparation method it is simple, each component advantages of nontoxic raw materials environmental protection, be readily biodegradable, flocculating effect is obvious.

Claims (8)

  1. A kind of 1. environment-friendly type aquiculture sewerage composite flocculation agent, it is characterised in that：Including tri- components of reagent I, II, III, respectively Component is made of the raw material of following mass parts respectively：
    Reagent I：
    Quaternized 50~150 parts of tannin；
    0.5~2 part of chitosan；
    800~1200 parts of water；
    Reagent II：
    50~150 parts of magnesium sulfate；
    800~1200 parts of water；
    Reagent III：
    7~9 parts of xanthans；
    1~3 part of guar gum；
    50~100 parts of magnesium sulfate；
    800~1200 parts of water.
  2. A kind of 2. environment-friendly type aquiculture sewerage composite flocculation agent according to claim 1, it is characterised in that：In reagent I, Quaternized tannin is quaternized acacia mearnsii tannin.
  3. A kind of 3. preparation method of environment-friendly type aquiculture sewerage composite flocculation agent, it is characterised in that：Comprise the following steps：
    1) weigh：Composition as described in claim 1 weighs raw material；
    2) reagent preparation I：It is first that quaternized tannin is soluble in water, chitosan is added, is mixed, obtains reagent I；
    3) reagent preparation II：Magnesium sulfate is soluble in water, stir evenly, obtain reagent II；
    4) reagent preparation III：First xanthans, guar gum and magnesium sulfate are mixed, then obtained mixture is dissolved in water In, obtain reagent III；
    5) stand：Reagent I, II and III for being made into are stood overnight, obtain environment-friendly type aquiculture sewerage composite flocculation agent.
  4. A kind of 4. flucculation process of aquiculture sewerage, it is characterised in that：Aquiculture sewerage alkali is first adjusted into pH to 8~9； The reagent I, reagent II and reagent III of composite flocculation agent described in claim 1 are sequentially added, is stirred evenly；Then it is heavy to stand Form sediment.
  5. A kind of 5. flucculation process of aquiculture sewerage according to claim 4, it is characterised in that：Adjust used in sewage pH Alkali be alkali metal hydroxide, alkali carbonate, at least one of alkali metal hydrogencarbonate.
  6. A kind of 6. flucculation process of aquiculture sewerage according to claim 4, it is characterised in that：It is dirty per 1L aquacultures In water, the dosage of reagent I is 1mL~5mL.
  7. A kind of 7. flucculation process of aquiculture sewerage according to claim 4, it is characterised in that：It is dirty per 1L aquacultures In water, the dosage of reagent II is 2mL~8mL.
  8. A kind of 8. flucculation process of aquiculture sewerage according to claim 4, it is characterised in that：It is dirty per 1L aquacultures In water, the dosage of reagent III is 0.5mL~2mL.
CN201711320620.3A 2017-12-12 2017-12-12 Environment-friendly aquaculture sewage composite flocculant and preparation method and application thereof Active CN108017130B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110923106A (en) * 2019-12-05 2020-03-27 大连工业大学 Beer clarifying agent and preparation method and application thereof

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Patentee before: GUANGDONG RESEARCH INSTITITUTE OF PETROCHEMICAL AND FINE CHEMICAL ENGINEERING