Biological agent for maintaining stability of circulating cooling water system, and preparation method and application thereof

A technology that circulates cooling water and stabilizes the system. It is applied to biochemical equipment and methods, methods based on microorganisms, and microorganisms. It can solve the problems of increasing the cost of cultivation, limited allowable concentration of chemical agents, and high water turbidity. High efficiency Inhibit the reproduction of bacteria and algae, the effect of scale dissolution and scale inhibition is obvious, and the effect of reducing the rate of chemical corrosion

Active Publication Date: 2017-05-31
重庆融极环保工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used scale inhibitors, corrosion inhibitors, bactericides and algicides are mainly chemicals, which have the following disadvantages: ① Common phosphorus and zinc salt corrosion and scale inhibitors will cause phosphorus content and heavy metals to exceed the standard, causing environmental damage Secondary pollution, bactericide and algicide will cause pipeline corrosion; ②The turbidity of the water body is high, and the allowable concentration of the chemical agent is limited, generally about 4 times; ③The chemical method cannot be operated under high COD water quality, and the chemical Chemicals cannot reduce salt corrosion; ④The purchase cost of chemical agents is relatively high, and a large amount of chemical agents are required for circulating water treatment. The control is complex, labor-intensive, and comprehensive operating costs are high, which increases the economic burden of the enterprise
However, on the one hand, this method needs to use more strains, which increases the cost of cultivation and use; on the other hand, it can only solve the problems of bacteria and algae growth and chemical corrosion, and cannot solve the problem of scaling in circulating cooling water

Method used

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  • Biological agent for maintaining stability of circulating cooling water system, and preparation method and application thereof
  • Biological agent for maintaining stability of circulating cooling water system, and preparation method and application thereof
  • Biological agent for maintaining stability of circulating cooling water system, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 Preparation of Biological Agents for Maintaining the Stability of the Circulating Cooling Water System

[0045] Activate the five strains of Lysinibacillus boronitolerans, Bifidobacterium bifidum, Candida, Bacillus subtilis, and Rhodopseudomonas paluscans respectively into 5 mL of Lysinibacillus boronitolerans, 5 mL of Bifidobacterium, and 5 mL of Candida Yeast stock, 5mL Bacillus subtilis stock, 5mL Rhodopseudomonas paluscans stock;

[0046] Inoculate 5 mL of Lysinibacillus boronitolerans bacterial stock into 100 mL of liquid medium, shake and culture at 30°C for 48 hours to obtain 500 mL of Lysinibacillus boronitolerans bacterial liquid; then inoculate 500 mL of Lysinibacillus boronitolerans bacterial liquid into a 10L fermenter, and keep the temperature at 25~30°C, the pH of the solution is neutral, and aerated for 40 hours to obtain 5L of Lysinibacillus boronitolerans bacterial liquid; then inoculate 5L of Lysinibacillus boronitolerans bacterial liquid int...

Embodiment 2

[0048] Example 2 Application of Biological Agents for Maintaining the Stability of the Circulating Cooling Water System

[0049] The biological agent for maintaining the stability of the circulating cooling water system prepared in Example 1 is added to the circulating water pool in the proportion of 0.02% of the volume of the circulating water, and the fixed stainless steel formwork in the circulating water pool has been added to account for the volume of the stainless steel formwork 70% fiber ball filler, water quality experiment data of circulating cooling water running for different times are shown in Table 1,

[0050] Table 1

[0051]

[0052]

[0053] As can be seen from Table 1: after using the biological agent of the present invention to maintain the stability of the circulating cooling water system in the circulating water system, after the microorganisms utilized a large amount of assimilable organic carbon, the COD gradually decreased, and with further biodegr...

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Abstract

The invention belongs to the technical field of industrial water treatment, and relates to a biological agent for maintaining the stability of a circulating cooling water system, and a preparation method and application thereof. The biological agent for maintaining the stability of a circulating cooling water system is composed of carbonic anhydrase-producing bacteria, lactobacillus, saccharomycetes, Bacillus and photosynthetic bacteria, can inhibit propagation of corrosion bacteria and algae in circulating water, reduces system oxygen corrosion, microbiological corrosion and salt corrosion, can dissolve hard scales generated in the circulating water system, prevents formation of new hard scales, improves the quality of the circulating water, maintains the stability of the circulating cooling water system, increases the concentration ratio, and realizes energy saving and emission reduction.

Description

technical field [0001] The invention belongs to the technical field of industrial water treatment, and in particular relates to a biological preparation for maintaining the stability of a circulating cooling water system, a preparation method and an application thereof. Background technique [0002] The concentration ratio refers to the ratio of the salt content in the circulating water to the salt content in the make-up water. It is an important indicator of industrial circulating water. Reduce water replenishment and sewage discharge to achieve energy saving and emission reduction. However, with the increase of the concentration of circulating cooling water, on the one hand, the concentration of calcium, magnesium and other scaling ions is getting higher and higher, and the scaling tends to be serious. In addition, as the water temperature rises, the solubility of some dissolved salts decreases instead. , will cause them to precipitate from the water and form scale, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/16C02F3/34C12R1/01C12R1/72C12R1/125C02F103/02
CPCC02F3/34C02F3/347C02F3/348C02F2103/023C12N1/16C12N1/20
Inventor 叶姜瑜李大荣杨建峡王宗萍窦建军
Owner 重庆融极环保工程有限公司
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