Sludge processing method

A sludge treatment and sludge technology, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc., can solve the problems of sludge with many impurities and cannot be used as fertilizer, and achieve high utilization rate High, no adverse side effects, scientific and reasonable treatment methods

Inactive Publication Date: 2017-03-01
邹贝尔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, silt was mainly used to fertilize the fields, but n

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A sludge treatment method mainly comprises the following steps,

[0018] 1) Screening, washing the sludge with water, and passing the formed slurry through a 400-mesh sieve to remove large particles of impurities and other substances;

[0019] 2) Precipitation, the mud after sieving and separation is left to stand for 2 days, and the mud and water are separated;

[0020] 3) remove water, remove the water formed after precipitation;

[0021] 4) pressure filtration, the sediment is squeezed by mechanical pressure filtration and filter membrane to remove water;

[0022] 5) Disinfection, the sediment after pressing is disinfected with limestone;

[0023] With the above steps, the sludge can be effectively treated.

Embodiment 2

[0025] A sludge treatment method mainly comprises the following steps,

[0026] 1) Screening, washing the sludge with water, and passing the formed slurry through a 500-mesh sieve to remove large particles of impurities and other substances;

[0027] 2) Precipitation, the mud separated by sieving is left to stand for 4 days, and the mud and water are separated;

[0028] 3) remove water, remove the water formed after precipitation;

[0029] 4) pressure filtration, the sediment is squeezed by mechanical pressure filtration and filter membrane to remove water;

[0030] 5) disinfection, the sediment after pressing is disinfected with calcium hypochlorite;

[0031] With the above steps, the sludge can be effectively treated.

Embodiment 3

[0033] A sludge treatment method mainly comprises the following steps,

[0034] 1) Screening, washing the sludge with water, and passing the formed slurry through a 450 mesh sieve to remove large particles of impurities and other substances;

[0035] 2) Precipitation, the mud after sieving and separation is left to stand for 3 days, and the mud and water are separated;

[0036] 3) remove water, remove the water formed after precipitation;

[0037] 4) pressure filtration, the sediment is squeezed by mechanical pressure filtration and filter membrane to remove water;

[0038] 5) Disinfection, the precipitate after pressing is disinfected with a mixture of calcium hypochlorite and limestone;

[0039] With the above steps, the sludge can be effectively treated.

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PUM

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Abstract

A sludge processing method belongs to the field of environmental protection and is provided to achieve the purpose of environmental protection. According to the technical scheme, the method mainly comprises steps of screening, sedimentation, dehydration, press filtration and disinfection, etc., and can be adopted for effective treatment of sludge. Solids obtained after the treatment can be used as excellent organic fertilizers to be used in farmland and parterre, etc., are safe and environment friendly, and have no adverse side effect. The processing method is scientific and reasonable and environment friendly, has high treatment efficiency and high utilization rate, has excellent social and economic benefits, and has promotion value.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a sludge treatment method. Background technique [0002] At present, the construction of the river course is vigorously promoted, and its dredging work is vigorously carried out. During the dredging process, the problem of sludge disposal has arisen. In the past, silt was mainly used to fertilize the fields, but now the silt has many impurities and cannot be used as fertilizer. Therefore, when paying attention to river dredging, how to deal with silt in a more environmentally friendly manner has become a very critical issue. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sludge treatment method to achieve the purpose of environmental protection. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a sludge treat...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/12
Inventor 邹贝尔
Owner 邹贝尔
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