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Environment-friendly material for curing microorganism sludge and application thereof

An environmentally friendly material and microbial technology, applied in the direction of biological sludge treatment, fixed/solidified sludge treatment, water pollutants, etc., can solve problems that have not been effectively and reasonably solved, so as to improve consolidation efficiency, control pollutants, The effect of increasing the strength of silt

Inactive Publication Date: 2018-12-21
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of dehydration of silt after dredging and resource utilization of silt in our country, the way out has not been effectively and reasonably solved.

Method used

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  • Environment-friendly material for curing microorganism sludge and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]The composition ratio of each component of the microbial sludge solidification environmental protection material is: the composite water treatment bacterial agent is SOUTH RANCH / Nanhua Qianmu's EM bacterial concentrated powder, the bacterial calcium ratio is 1:9, and the amount of calcium chloride added is 3% of the dry weight of the sludge % (1.2g), the amount of cetyltrimethylammonium bromide is 5% (2g) of the dry weight of the sludge, and the amount of LPS is 4% (1.6g) of the dry weight of the sludge. The initial water content of the test sludge is 92.0% , with an initial pH of 9.01 and an organic matter content of 5.31%, dried in an oven and ground through a 100-mesh sieve for later use. Take 40g of air-dried and sieved sludge with an electronic balance, place it in a beaker, add 360g of distilled water, and prepare sludge with a moisture content of 90%, as a blank group. In addition, weigh 40g of air-dried and sieved sludge, add 300g of distilled water, and dissolve...

Embodiment 2

[0046] In this example, the composition ratio of the components of the sludge solidification and environmental protection new material is as follows: the composite water treatment bacterial agent is SOUTHRANCH / Nanhua Qianmu's EM bacterial concentrated powder, the bacterial calcium ratio is 1:8, and the amount of calcium chloride added is silt dry 2% of the weight, cetyl trimethyl ammonium bromide addition is 4% of the dry weight of the sludge, and PAMG addition is 3% of the dry weight of the sludge. The test sludge had an initial moisture content of 92.0%, an initial pH of 9.01, and an organic matter content of 5.31%. It was dried in an oven and ground through a 100-mesh sieve for use. Take 40g of air-dried and sieved sludge with an electronic balance, place it in a beaker, add 360g of distilled water, and prepare sludge with a moisture content of 90%, as a blank group. In addition, weigh 40g of air-dried and sieved sludge, add 300g of distilled water, and dissolve the above-m...

Embodiment 3

[0048] In this example, the composition ratio of the components of the sludge-solidified environmentally friendly new material is: the composite water treatment bacterial agent is SOUTHRANCH / Nanhua Qianmu's EM bacteria concentrated powder, the bacteria-calcium ratio is 1:10, and the amount of calcium chloride added is silt 4% of the dry weight, cetyltrimethylammonium bromide addition is 6% of the dry weight of the sludge, and PAMG addition is 5% of the dry weight of the sludge. The test sludge had an initial moisture content of 92.0%, an initial pH of 9.01, and an organic matter content of 5.31%. It was dried in an oven and ground through a 100-mesh sieve for use. Take 40g of air-dried and sieved sludge with an electronic balance, place it in a beaker, add 360g of distilled water, and prepare sludge with a moisture content of 90%, as a blank group. In addition, weigh 40g of air-dried and sieved sludge, add 300g of distilled water, and dissolve the above-mentioned composite sol...

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Abstract

The invention discloses an environment-friendly material for curing microorganism sludge. The environment-friendly material for curing microorganism sludge is prepared from the following components ofa composite water treatment bacterial agent, a calcium source and a composite curing agent. The invention also discloses application of the environment-friendly material for curing microorganism sludge. The environment-friendly material for curing microorganism sludge has the advantages that the physical and chemical properties of the riverway sludge are obviously influenced; the contents of nitrogen, phosphor and heavy metals in the sludge are certainly reduced, the water content is reduced, the strength is improved, and the good utilization value and environment benefit are realized.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a solidification material, in particular to a rapid dehydration stable environment-friendly microbial sludge solidification environment-friendly material and its application. Background technique [0002] With the development and advancement of China's urbanization and social economy, the problem of river pollution is becoming more and more serious, and the siltation is serious. The total amount of river silt is large, the initial moisture content is high, and the composition is complex. It may carry certain toxic and harmful substances. If it is discarded and landfilled at will, it will not only have low utilization efficiency and occupy soil resources, but will also lead to the diffusion of pollutants in the silt, which is harmful to all things. The living environment causes secondary pollution. Therefore, after the dredging of the river channel, the solid impurities must be scre...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/02C02F11/12C02F101/10C02F101/16C02F101/20
CPCC02F11/008C02F11/02C02F11/12C02F2101/20C02F2101/16C02F2101/105
Inventor 祝建中徐迪朱秋子吴绍凯陈靓
Owner HOHAI UNIV
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