Treatment process for black and odorous sludge in black and odorous water body

Abstract

The invention discloses a treatment process for black and odorous sludge in a black and odorous water body. The treatment process sequentially comprises the following steps: water body desilting: sucking out and conveying the sludge in the water body through a slurry pump; garbage cleaning: conveying sludge into screening equipment to separate garbage in the sludge, then carrying out sand and mud separation, and then enabling the screened sludge to flow into a settling pond; concentrating and settling: sequentially adding a flocculating agent and a settling agent into the settling pond to enable sludge to settle at the bottom of the settling pond to form bottom mud, pumping out liquid on the upper layer of the settling pond for purification treatment, and discharging the liquid back to the raw water body after the liquid is qualified; bottom mud hardening and tempering: pumping the bottom mud at the bottom of the settling pond to a bottom mud hardening and tempering device, and then adding a hardening and tempering agent for hardening and tempering; dehydration and drying: sending the tempered bottom mud to a dehydrator for dehydration and drying to form a mud cake. The process provided by the invention has efficient treatment efficiency and dehydration effect, and can bring better environmental benefits and social benefits.

Description

technical field [0001] The invention relates to a process for treating black and odorous sludge in black and odorous water, and belongs to the field of sludge treatment. Background technique [0002] With the continuous development of the country and the advancement of science and technology, my country's industrial field has achieved great development. However, with the development of industry, the environmental and treatment problems caused by industrial sewage and sludge are imminent. Most of the sewage and sludge are simply treated. It is directly discharged, and the garbage is mixed in the water body to produce odor, which affects the quality of life of nearby residents. Therefore, the treatment of black and odorous sludge has been paid more and more attention; most of the traditional sludge disposal methods are settled in sewage tanks, and then the bottom sludge Pump out and stack after simple treatment, but the sludge at the bottom also contains a large amount of water,...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of the country and the advancement of science and technology, my country's industrial field has achieved great development. However, with the development of industry, the environmental and treatment problems caused by industrial sewage and sludge are imminent. Most of the sewage and sludge are simply treated. It is directly discharged, and the garbage is mixed in the water body to produce odor, which affects the quality of life of nearby residents. Therefore, the treatment of black and odorous sludge has been paid more and more attention; most of the traditional sludge disposal methods are settled in the sewage tank, and then the bottom sludge Pump out and stack after simple treatment, but the sludge at the bottom also contains a large amount of water, resulting in a large fluidity and a large volume, which requires a large area for storage, and various pollutants contained in the sludge Very easy to cause secondary pollution of the environment

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