Preparation method of compound flocculation algae inhibitor and compound flocculation algae inhibitor

A technology of algae inhibitor and flocculant, which is applied in the preparation method and the field of the prepared compound flocculation algae inhibitor, can solve the problems of inability to achieve long-term algae inhibition in water bodies, destroy biological ecosystems, prolong system start-up time, etc., and achieve long-term increase Effective anti-algae ability, low preparation cost, and beneficial to the survival of algae-inhibiting bacteria

Active Publication Date: 2020-09-04
HUATIAN ENG & TECH CORP MCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to avoid the failure of bio-ecological restoration measures, the start-up of the water bio-ecological restoration system must be extended until after the oxidant fails, which prolongs the system startup time and also affects the initial restoration effect of the system
Salts containing copper ions, such as copper sulfate, etc., mainly rely on the toxicity of heavy metals to kill algae, which will also destroy the background biological ecosystem. What is more dangerous is that this method introduces heavy metal ions into the water body.
In comparison, the flocculant is relatively mild, has a short effective time, and has a good water clarification effect, but the flocculant can only achieve flocculation and sedimentation of the overlying water to remove algae, and cannot achieve long-term algae inhibition of the water body

Method used

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preparation example Construction

[0033] The present invention provides a kind of preparation method of composite flocculation anti-algae agent, specifically comprises the following steps:

[0034] (1) Dissolving chitosan in acetic acid or hydrochloric acid solution to prepare a 0.1-10 mg / mL chitosan aqueous solution;

[0035] (2) Dissolve an appropriate amount of algae-inhibiting agent in ethanol, and prepare an algae-inhibiting agent ethanol solution of 5 to 200 mg / L, wherein the algae-inhibiting agent is a plant polyphenol with algae-inhibiting efficacy, and the algae-inhibiting agent includes gall One or more of acid, vanillic acid, ferulic acid, catechol and hydroquinone;

[0036] (3) Add an appropriate amount of algastatic agent ethanol solution prepared in step (2) into the chitosan aqueous solution configured in step (1), wherein the volume ratio of the gallic acid solution to the chitosan aqueous solution is (1~3): 1. Then seal the reaction system with plastic wrap, stir and react at 25-30°C for 6-24...

Embodiment 1

[0052] (1) Microbial cell selection: Bacillus lateralis was purchased from Shandong Lvlong Biotechnology Co., Ltd.;

[0053] (2) After rejuvenation and activation of Bacillus lateralis, ferment with LB liquid medium for 12-24 hours, wash and collect the bacterial cells, concentrate to obtain a cell density of 10 11 cells / mL;

[0054] (3) Polyacrylamide bacterial liquid: dissolve the thalline cells of Bacillus lateralis in 0.05% cationic polyacrylamide aqueous solution to form a thalline cell density of 10 8 cells / mL polyacrylamide bacterial liquid;

[0055] (4) Preparation of 200 mesh diatomite: diatomite is pulverized, ground, and sieved to obtain diatomite with a particle size of 200 mesh. Wherein, diatomite is purchased from Henan Yusong Water Supply and Drainage Equipment Factory;

[0056] (5) Slowly add 100mL of the polyacrylamide bacterial liquid in step (3) dropwise into 10g of sieved diatomaceous earth, mix well, place in a 30°C constant temperature water bath at 80r...

Embodiment 2

[0064] (1) Microbial cell selection: Bacillus subtilis was purchased from Shandong Lulong Biotechnology Co., Ltd.;

[0065] (2) After Bacillus subtilis is rejuvenated and activated, it is fermented with LB liquid medium for 12-24 hours, washed and collected bacterial cells, concentrated to obtain a cell density of 10 9 cells / mL;

[0066] (3) Polyacrylamide bacterial liquid: dissolve the thalline cells of Bacillus lateralis in 0.05% cationic polyacrylamide aqueous solution to form a thalline cell density of 10 7 cells / mL polyacrylamide bacterial liquid;

[0067] (4) Preparation of 200 mesh diatomite: diatomite is pulverized, ground, and sieved to obtain diatomite with a particle size of 200 mesh. Wherein, diatomite is purchased from Henan Yusong Water Supply and Drainage Equipment Factory;

[0068] (5) Slowly add 50mL of the polyacrylamide bacterial solution in step (3) dropwise into 10g of sieved diatomaceous earth, mix well, place in a constant temperature water bath at 30°...

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Abstract

The invention discloses a preparation method of a composite flocculation algae inhibitor, and belongs to the technical field of environmental protection. The preparation method is characterized by comprising the following steps: the preparation of chitosan-loaded algae inhibitor powder; the immobilization of alga inhibiting bacteria and the cationic modification of a flocculation agent; and compounding of the chitosan-loaded algae inhibitor and the biological composite modified flocculation agent. The invention also discloses the composite flocculation algae inhibitor. According to the composite flocculation algae inhibitor prepared by the preparation method disclosed by the invention, a good flocculation and algae removal effect can be achieved; a microbial agent with an alga inhibiting function is introduced while algae removal by flocculation is carried out, and a synergistic effect with the algae inhibitor is achieved, so that a long-acting algae inhibiting capability of water bodyis improved, and over-propagation of algae is prevented. According to the preparation process provided by the invention, the raw materials are low in price, the preparation cost is low, and the natural ecological system cannot be damaged by the materials, so that the composite flocculation algae inhibitor can be used as an emergency algae removal treatment agent for water body repair engineering,and can exert a long-acting algae inhibiting effect.

Description

technical field [0001] The invention relates to the technical field of water body environmental protection, in particular to a preparation method of a composite flocculation algae inhibitor and the prepared composite flocculation algae inhibitor. Background technique [0002] The algae bloom caused by eutrophication not only brings serious harm to the ecosystem, but also seriously threatens human health and survival, increases the cost of water treatment and maintenance, makes the water ecological environment unbalanced, and becomes a water resource environment. One of the major challenges facing the field. [0003] Among the emergency treatment methods for cyanobacteria outbreaks, dosing chemical agents and biological agents is a technique that is widely used. Adding potassium permanganate, sodium hypochlorite and other oxidants to the water body can directly kill algae, but it also destroys the ecological environment of indigenous organisms that have a restoration functio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52
CPCC02F1/52
Inventor 赵丹冯植飞骆守鹏孟溪程寒飞
Owner HUATIAN ENG & TECH CORP MCC
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