Natural mineral repairing agent for inhibiting outbreak of blue-green algae

A technology of minerals and remediation agents, applied in water pollutants, adsorbed water/sewage treatment, water/sewage treatment, etc., can solve the problems of water quality that is difficult to meet the requirements of aquaculture, non-sustainability of chemical preparations, and deterioration of water quality. , to achieve the effect of low price, inhibit growth and reproduction, and improve transparency

Inactive Publication Date: 2020-07-07
HUANYA TIANJIN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing water purifiers are almost all chemical formulations. Although they have certain effects on the water quality of black and odorous water bodies, the water quality is difficult to meet the requirements of aquaculture. Nowadays, polyaluminum chloride is used more often. Although polyaluminum chloride Aluminum chloride is use...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a mild black and odorous river course, ammonia nitrogen (NH3-N): 23mg / L, total phosphorus (P): 1.06mg / L, chemical oxygen demand (COD): 110mg / L, transparency: below 10cm, stench: Thick, river sludge Color: black or grayish black. According to the treatment of 2000m per ton of mineral restoration agent 3 The dosage of the water body, the formula of the mineral restoration agent is 70% of natural zeolite powder, 10% of diatomaceous earth, 5% of modified clay, 8% of coconut shell activated carbon, and 7% of erythromycin powder. After adding for 5 days, the black odor is completely eliminated , ammonia nitrogen (NH 3 -N): 1.8mg / L, total phosphorus (P): 0.2mg / L, chemical oxygen demand (COD): 48mg / L, transparency: crystal clear.

Embodiment 2

[0024] The surrounding area of ​​a certain pond is a garbage dump site for many years. In summer, rainwater and nearby surface runoff gradually wash away the surrounding garbage mountains to form irregular ponds. The water body turns brown, emits a foul smell, and the transparency is almost zero. The garbage at the bottom of the pond continues to pollute the water body. COD in water: 350mg / L, ammonia nitrogen: 60mg / L, total phosphorus: 2.5mg / L. According to the treatment of 2000m per ton of mineral restoration agent 3 The amount of water used, the formula of mineral repair agent is 70% of natural zeolite powder, 12% of diatomite, 8% of modified clay, 5% of coconut shell activated carbon, and 5% of erythromycin powder. After 10 days of adding, the water quality reaches COD: 80mg / L, ammonia nitrogen: 4.8mg / L, total phosphorus: 0.5mg / L, after the treatment is completed, the water in the pond will be discharged into the surrounding rivers.

Embodiment 3

[0026] In a certain river channel, due to the sneaky discharge and dumping of pickling wastewater by surrounding factories, the water body and the bank slopes on both sides have turned reddish brown, with a pH of 2-3, ammonia nitrogen 52.5mg / L, COD 825mg / L, waste acid pollution, sediment pollution, Heavy metal pollution seriously exceeded the standard. According to the treatment of 1500m per ton of mineral restoration agent 3 The amount of water used, the formula of mineral repair agent is 60% of natural zeolite powder, 17% of diatomite, 6% of modified clay, 2% of coconut shell activated carbon, and 15% of erythromycin powder. After 10 days of adding, the water quality reaches COD: 110mg / L, ammonia nitrogen: 4.5mg / L, total phosphorus: 0.6mg / L. After treatment, the water environment is restored, the pH value is 7-8, the sandy layer is well sealed by the bottom mud, and the transparency of the water body is restored. After three months of maintenance, all indicators ...

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Abstract

A repairing agent disclosed by the invention takes natural minerals as main components, is used after being dissolved in water, is convenient to operate, and is environment-friendly without generatingsecondary pollution after being used. When a water body prone to outbreak blue-green algae is treated, the transparency of the water body can be rapidly improved; blue-green algae in the water body are precipitated into bottom sludge through adsorption and flocculation, meanwhile, the concentration of total phosphorus in the water body is reduced, and growth and propagation of the blue-green algae are inhibited. The clay is an aggregate of clay minerals, has a unique crystal layer overlapped structure, and has the characteristics of rich resources, low price and the like. The natural mineralrepairing agent is prepared by cationic modification of the original clay, so that the inhibition effect of the blue-green algae is improved. Compared with aluminum polychlorid used at present, the repairing agent is low in price and better in effect. Coconut shell activated carbon is low in price, and the cost is increased while the effect of the repairing agent is improved.

Description

technical field [0001] The invention belongs to the technical field of surface water purification treatment, and in particular relates to a natural mineral restoration agent for suppressing blue-green algae outbreaks. Background technique [0002] With the rapid development of modern society and the continuous improvement of people's living standards, a large amount of domestic sewage, agricultural irrigation water, domestic garbage, industrial wastewater, and surface runoff with a large pollution load directly flow into the water body, making the concentration of ammonia nitrogen in the river relatively high. In practical engineering applications, how to reduce the concentration of ammonia nitrogen in water bodies, how to increase aerobic and facultative anaerobic microorganisms in sludge, and digest sludge are the keys to improving water quality and comprehensively treating black and odorous water bodies. The existing water purifiers are almost all chemical formulations. A...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/52C02F101/16
CPCC02F1/281C02F1/5236C02F2101/16
Inventor 闫陶军赵伟亮
Owner HUANYA TIANJIN ENVIRONMENTAL PROTECTION TECH CO LTD
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