CN107032467B - ethanol/ZnSO capable of settling algae4Composite modified shrimp shell and application thereof - Google Patents

ethanol/ZnSO capable of settling algae4Composite modified shrimp shell and application thereof Download PDF

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Publication number
CN107032467B
CN107032467B CN201710424187.1A CN201710424187A CN107032467B CN 107032467 B CN107032467 B CN 107032467B CN 201710424187 A CN201710424187 A CN 201710424187A CN 107032467 B CN107032467 B CN 107032467B
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ethanol
znso
algae
shrimp shell
modified
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CN107032467A (en
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王红强
唐东山
房琦
邓启湘
汪弘
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Nanhua University
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Nanhua University
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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
    • 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
    • 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
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • 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
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

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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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Abstract

The invention relates to a preparation method of a modified material capable of settling algae and an application thereof in algae removal. ethanol/ZnSO capable of settling algae4The composite modified shrimp shell is prepared by the following steps: preparing 0.1mol/L zinc sulfate stock solution; preparing ethanol/ZnSO with a volume ratio of 1: 1-1: 9 by using 95% ethanol and zinc sulfate stock solution4A solution; adding 20 parts by mass of dried and crushed shrimp shells into 1 volume part of ethanol/ZnSO4Heating and stirring the solution in a constant-temperature water bath kettle at the temperature of 40-100 ℃ for 1-8 h; the volume part unit is counted as L, and the mass part unit is counted as g; filtering to obtain modified shrimp shells, washing with purified water or distilled water, and drying to obtain the final shrimp shell modified material. The ethanol/ZnSO prepared by the invention can enable the algae to be settled4The composite modified shrimp shell has the advantages of simple preparation process, easily obtained raw materials, and capability of preparing the algae removal material with low environmental impact, and effectively removes algae with low cost.

Description

ethanol/ZnSO capable of settling algae4Composite modified shrimp shell and application thereof
Technical Field
The invention relates to a modified material capable of settling algae, in particular to ethanol/ZnSO capable of settling algae4A preparation method of the composite modified material and application thereof in algae removal.
Background
Along with the discharge of a large amount of nitrogen and phosphorus-containing wastewater soil runoff into a natural water body, water eutrophication and blue algae bloom outbreak are caused, so that not only is the water quality deteriorated, the dissolved oxygen of the water body reduced and unpleasant smell emitted, but also the water bloom blue algae can release algal toxins, and the harm is caused to aquatic organisms and human health. Among the numerous treatment methods, the preparation of algaecides from natural substances has become an important research direction at present.
Disclosure of Invention
The invention provides ethanol/ZnSO4Preparation method of compound modified shrimp shell and prepared ethanol/Zn SO4The composite modified material is suitable for removing blue algae in small landscape water body with the blue algae as dominant species。
The technical scheme adopted by the invention is as follows:
ethanol/ZnSO capable of settling algae4The composite modified shrimp shell is prepared by the following steps:
1) cleaning shrimp shell, drying, pulverizing, and sieving;
2) preparing 0.1mol/L zinc sulfate stock solution;
3) preparing ethanol/ZnSO with a volume ratio of 1: 1-1: 9 by using 95% ethanol and zinc sulfate stock solution4A solution;
4) adding 20 parts by mass of dried and crushed shrimp shells into 1 volume part of ethanol/ZnSO4Heating and stirring the solution in a constant-temperature water bath kettle at the temperature of 40-100 ℃ for 1-8 h; the volume part unit is counted as L, and the mass part unit is counted as g;
5) filtering to obtain modified shrimp shells, washing with purified water or distilled water, and drying to obtain the final shrimp shell modified material.
The modified shrimp shell prepared by the preparation method is used for removing algae in the small landscape water body with the blue algae as the dominant species.
The invention has the beneficial effects that:
1. the invention can settle the ethanol/ZnSO of the algae4The composite modified shrimp shell has the advantages of simple preparation process, easily obtained raw materials, and capability of preparing the algae removal material with low environmental impact, and effectively removes algae with low cost. The water body is clear after the algae removal, the water body appearance is not influenced, and the method is suitable for removing the algae in the small landscape water body taking the blue algae as the dominant species.
2. The invention can settle the ethanol/ZnSO of the algae4The composite modified material is prepared by taking the shrimp shells as the main raw material, provides a new way for the resource utilization of the shrimp shells, is economic and environment-friendly, and can promote the waste utilization and resource saving. Can safely and effectively control algal bloom, and can make algal bodies sink into a water body to keep the water surface clean.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
ethanol/ZnSO capable of settling algae4The compound modified shrimp shell is prepared from ethanol and ZnSO4And preparing shrimp shells:
1) cleaning shrimp shell, drying at 105 deg.C, pulverizing, and sieving with 80 mesh sieve;
2) preparing 0.1mol/L zinc sulfate stock solution;
3) preparing ethanol/ZnSO with a volume ratio of 1: 1-1: 9 by using 95% ethanol and zinc sulfate stock solution4A solution;
4) adding 20 parts by mass of dried and crushed shrimp shells into 1 volume part of ethanol/ZnSO4Heating and stirring the solution in a constant-temperature water bath kettle at the temperature of 40-100 ℃ for 1-8 h; the volume part unit is counted as L, and the mass part unit is counted as g;
5) filtering with filter paper to remove solvent to obtain modified shrimp shell, and washing with purified water or distilled water; drying at 105 ℃ to obtain the final shrimp shell modified material.
Example 2
The ethanol/ZnSO capable of settling the algal bodies described in this example4The preparation method of the composite modified shrimp shell is different from the preparation method of the embodiment 1 in that: when the modified material is prepared, 20 parts by mass of dried and crushed shrimp shells are added into 1 part by volume of ethanol/ZnSO in a volume ratio of 1: 1-1: 34And heating and stirring the solution in a constant-temperature water bath kettle at the temperature of 40-60 ℃ for 1-4 h.
Example 3
The ethanol/ZnSO capable of settling the algal bodies described in this example4The preparation method of the composite modified shrimp shell is different from the preparation method of the embodiment 1 in that: when the modified material is prepared, 20 parts by mass of dried and crushed shrimp shells are added into 1 part by volume of ethanol/ZnSO in a volume ratio of 1: 3-1: 74And heating and stirring the solution in a constant-temperature water bath kettle at the temperature of 60-80 ℃ for 4-6 h.
Example 4
The ethanol/ZnSO capable of settling the algal bodies described in this example4The preparation method of the composite modified shrimp shell is different from the preparation method of the embodiment 1 in that: when the modified material is prepared, 20 parts by mass of dried and crushed shrimp shells are added into 1 part by volume of ethanol/ZnSO in a volume ratio of 1: 7-1: 94In the solution, in a constant temperature water bath kettle at 80-100 DEG CHeating and stirring for 6-8 h.
The ethanol/ZnSO prepared by the invention4The composite modified shrimp shell is used for purifying and removing algae cells in algae-polluted water, and 1 volume part of ethanol/ZnSO in water to be treated4The adding amount of the composite modified shrimp shells is 6-22 parts by mass, algae cells settle to the water bottom within 30 hours, and the water body is clear.
The invention is further illustrated below with reference to laboratory findings.
Experiment 1
2g of dried and crushed shrimp shell is added into 100 mL of 1:5 ethanol/ZnSO4Heating and stirring in 80 deg.C constant temperature water bath for 4 hr, filtering with filter paper to remove solvent, washing modified shrimp shell for three times, and oven drying at 105 deg.C to obtain final ethanol/ZnSO4And (3) compounding and modifying the shrimp shells. Adding ethanol/ZnSO into 50mL of microcystis aeruginosa liquid with absorbance value of 0.1 at 680nm wavelength40.7g of compound modified shrimp shells, standing for 30h, settling algae to the water bottom, and clearing water, wherein the removal rate of algae cells is 67.25% by detection.
Experiment 2
2g of dried and crushed shrimp shell is added into 100 mL of 1:3 ethanol/ZnSO4Heating and stirring in 100 deg.C constant temperature water bath for 4 hr, filtering with filter paper to remove solvent, washing modified shrimp shell for three times, and oven drying at 105 deg.C to obtain final ethanol/ZnSO4And (3) compounding and modifying the shrimp shells. Adding ethanol/ZnSO into 50mL of microcystis aeruginosa liquid with absorbance value of 0.1 at 680nm wavelength40.7g of compound modified shrimp shells, standing for 30h, settling algae to the water bottom, and clearing water, wherein the removal rate of algae cells is 74.55% by detection.
Experiment 3
2g of dried and crushed shrimp shell is added into 100 mL of 1:3 ethanol/ZnSO4Heating and stirring in 80 deg.C constant temperature water bath for 4 hr, filtering with filter paper to remove solvent, washing modified shrimp shell for three times, and oven drying at 105 deg.C to obtain final ethanol/ZnSO4And (3) compounding and modifying the shrimp shells. Adding ethanol/ZnSO into 50mL of microcystis aeruginosa liquid with absorbance value of 0.1 at 680nm wavelength4Composite modification0.7g of shrimp shells, standing for 30h, settling algae to the water bottom, and clearing the water body, wherein the removal rate of algae cells is 78.39% by detection.

Claims (2)

1. ethanol/ZnSO capable of settling algae4The preparation method of the composite modified shrimp shell algaecide is characterized by comprising the following steps:
1) cleaning shrimp shell, drying, pulverizing, and sieving;
2) preparing 0.1mol/L zinc sulfate stock solution;
3) preparing ethanol/ZnSO with a volume ratio of 1: 3-1: 7 by using 95% ethanol and zinc sulfate stock solution4A solution;
4) adding 20 parts by mass of dried and crushed shrimp shells into 1 volume part of ethanol/ZnSO4Heating and stirring the solution in a constant-temperature water bath kettle at the temperature of 60-80 ℃ for 4-6 h; the volume part unit is counted as L, and the mass part unit is counted as g;
5) filtering to obtain modified shrimp shells, washing with purified water or distilled water, and drying to obtain the final shrimp shell modified material.
2. The modified shrimp shell prepared by the preparation method of claim 1 is used for removing algae in small-sized landscape water body with blue algae as dominant species.
CN201710424187.1A 2017-06-07 2017-06-07 ethanol/ZnSO capable of settling algae4Composite modified shrimp shell and application thereof Active CN107032467B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110818040A (en) * 2019-10-28 2020-02-21 江苏江达生态科技有限公司 Method for preventing and treating cladophora
CN113068713A (en) * 2021-03-30 2021-07-06 江苏曌之源实业有限公司 Efficient algae remover and application thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
小龙虾虾壳及其仿生合成物对污水中重金属的吸附特性与机理研究;郑晓冬;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20150815(第8期);第32-33、54-55页 *
生物载体除藻剂去除海洋赤潮藻;梁想 等;《中国环境科学》;20011231(第1期);第15-17页 *

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