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Black and odorous water body sediment improver and preparation method thereof

A technology for black and odorous water bodies and modifiers, applied in chemical instruments and methods, water/sludge/sewage treatment, sludge detoxification, etc., can solve problems such as sediment pollution and water quality difficult to meet standards, to avoid diffusion, provide Effects of utilization efficiency and accelerated recovery

Pending Publication Date: 2020-12-15
SICHUAN QINGHE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of urbanization, due to the impact of human activities, a large number of pollutants enter the water body through atmospheric deposition, wastewater discharge, rainwater erosion, etc., and finally deposit in the bottom mud and gradually enrich. The bottom mud of eutrophic rivers is generally seriously polluted , the pollutants in the sediment are repeatedly mixed with the water body, making it difficult for the water quality to meet the standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A black and odorous water body sediment modifier, comprising the following components in parts by mass:

[0027] 5 parts of potassium ferrate, 2 parts of polyaluminum chloride, 2 parts of composite bacteria, 1 part of defoamer, 0.2 parts of starch and 1 part of zeolite; the composite bacteria are composed of photosynthetic bacteria, yeast, Bacillus subtilis and Bacillus licheniformis It is composed according to the mass ratio of 4:3:2:1.

[0028] The black and smelly water bottom mud improving agent in the present embodiment is made through the following steps:

[0029] S1: Weigh the potassium ferrate and polyaluminum chloride in the formula and mix them evenly, and ball-mill the mixture into a powder with a particle size of about 10 μm;

[0030] S2: Weigh the starch in the formula amount and add it to the powder obtained in S1 and mix well, mix the mixture with water at a solid-liquid ratio of 1:9g / mL, and shear and stir at a speed of 2000rmp for 18min;

[0031] S3: ...

Embodiment 2

[0035] A black and odorous water body sediment modifier, comprising the following components in parts by mass:

[0036] 4 parts of potassium ferrate, 3 parts of polyaluminum chloride, 1 part of composite bacteria, 1.5 parts of defoamer, 0.1 part of starch and 2 parts of zeolite; the composite bacteria are composed of photosynthetic bacteria, yeast, Bacillus subtilis and Bacillus licheniformis It is composed according to the mass ratio of 3:4:1:3.

[0037] The black and smelly water bottom mud improving agent in the present embodiment is made through the following steps:

[0038] S1: Weigh the potassium ferrate and polyaluminum chloride in the formula and mix them evenly, and ball-mill the mixture into a powder with a particle size of about 5 μm;

[0039] S2: Weigh the starch in the formula amount and add it to the powder obtained in S1 and mix well, mix the mixture with water at a solid-liquid ratio of 1:8g / mL, and shear and stir at a speed of 2000rmp for 15min;

[0040] S3:...

Embodiment 3

[0044] A black and odorous water body sediment modifier, comprising the following components in parts by mass:

[0045] 6 parts of potassium ferrate, 1 part of polyaluminum chloride, 3 parts of composite bacteria, 0.5 parts of defoamer, 0.1 part of starch and 2 parts of zeolite; the composite bacteria are composed of photosynthetic bacteria, yeast, Bacillus subtilis and Bacillus licheniformis Composed according to the mass ratio of 5:2:3:1.

[0046] The black and smelly water bottom mud improving agent in the present embodiment is made through the following steps:

[0047] S1: Weigh the potassium ferrate and polyaluminum chloride in the formula and mix them evenly, and ball-mill the mixture into a powder with a particle size of about 15 μm;

[0048] S2: Weigh the starch in the formula amount and add it to the powder obtained in S1 and mix evenly, mix the mixture with water at a solid-liquid ratio of 1:10g / mL, and shear and stir at a speed of 2000rmp for 20min;

[0049] S3: F...

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Abstract

The invention discloses a black and odorous water body sediment improver and a preparation method thereof. The black and odorous water body sediment improver comprises potassium ferrate, polyaluminiumchloride, composite bacteria, an antifoaming agent, starch, zeolite and other components, and the composite bacteria comprise photosynthetic bacteria, saccharomycetes, bacillus subtilis and bacilluslicheniformis according to a mass ratio of 3-5: 2-4: 1-3: 1-3. The black and odorous water body sediment improver can thoroughly decompose organic matters, adsorb and fix eutrophication substances, thoroughly change the sediment environment and promote the propagation and growth of microorganisms and aquatic animals in the water body, thereby accelerating the recovery of the ecological system. Thepreparation method of the black and odorous water body sediment improver is simple, convenient to operate and suitable for mass production; and the improved sediment can be used as a fertilizer, so that the utilization efficiency of the sediment is improved, and the economical efficiency is very good.

Description

technical field [0001] The invention belongs to the technical field of water body treatment, and in particular relates to a black and odorous water bottom mud modifier and a preparation method thereof. Background technique [0002] In the process of urbanization, due to the impact of human activities, a large number of pollutants enter the water body through atmospheric deposition, wastewater discharge, rainwater erosion, etc., and finally deposit in the bottom mud and gradually enrich. The bottom mud of eutrophic rivers is generally seriously polluted , The pollutants in the sediment are repeatedly mixed with the water body, making it difficult for the water quality to meet the standard. The aggravation of sediment pollution is mainly caused by human factors. In the process of rapid economic development, a large number of refractory and high-concentration pollutants enter the river, and the pollutants accumulate in the river sediment, which will lead to water pollution. Bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02C02F1/52C02F101/30
CPCC02F1/52C02F11/00C02F11/004C02F11/02C02F2101/30C02F2103/007
Inventor 向文良李建简龙骥黄元松梁华忠刘学阳
Owner SICHUAN QINGHE TECH