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A tank body for biochemical treatment of heavy metals in sludge

A biochemical treatment and heavy metal technology, applied in sludge treatment, biological sludge treatment, water/sludge/sewage treatment, etc., can solve the problems of poor treatment efficiency and small amount of heavy metal treatment, and achieve simple structure, eliminate The content of heavy metals, the effect of increasing penetration

Active Publication Date: 2018-09-04
陈秀珠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a sludge heavy metal biochemical treatment tank, the main purpose of which is to overcome the defects that the existing sludge treatment equipment has a small amount of heavy metal treatment and the treatment efficiency is not good

Method used

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  • A tank body for biochemical treatment of heavy metals in sludge
  • A tank body for biochemical treatment of heavy metals in sludge

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Embodiment Construction

[0019] The specific embodiments of the present invention will be described below with reference to the drawings.

[0020] Reference figure 1 with figure 2 . A sludge treatment equipment includes a sludge heavy metal biochemical treatment tank 1, a sludge dehydration conditioning tank 2 and a sludge dehydration drying tank 3 into which sludge 9 is passed in sequence.

[0021] Reference figure 1 with figure 2 . The sludge heavy metal biochemical treatment tank body 1 includes a first tank body 10, a first drainage cover 11 arranged inside the first tank body 10, and a blower mechanism 4, and the first tank body 10 is provided with a A first feed port 101 for feeding heavy metal-containing sludge raw materials, a first feed port 102 for feeding a nutrient solution containing Thiobacillus oxidans, and a first air vent 103 communicated with the blowing mechanism 4, so The first vent 103 is located at the bottom of the first tank 10, and the first drainage cover 11 includes a first...

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Abstract

A sludge heavy metal biochemical treatment tank comprises a first tank body, a first flow guiding cover arranged in the first tank body and an air blowing mechanism. The first tank body is provided with a first feed port used for putting in sludge raw materials containing heavy metal, a first feed inlet for putting in a nutrient solution containing thiobacillus thiooxidant and a first ventilation port communicated with the air blowing mechanism. The first ventilation port is located at the bottom of the first tank body. The first flow guiding cover comprises a first upper opening, a first lower opening located over the first ventilation port and a first drainage channel extending to the first upper opening from the first lower opening. By means of the sludge heavy metal biochemical treatment tank, heavy metal and thiobacillus thiooxidant of sludge can have a full gas and solid contact effect, the heavy metal is dissolved out of the sludge because of the oxidization and acidification effect of the thiobacillus thiooxidant, and the heavy metal in the sludge is removed.

Description

Technical field [0001] The invention relates to a sludge treatment auxiliary equipment, in particular to a sludge heavy metal biochemical treatment tank. Background technique [0002] In recent years, with the rapid growth of my country's sewage treatment capacity and treatment rate, a large amount of excess sludge has been produced. At present, only a small part of the sludge from urban sewage treatment plants nationwide is used for sanitary landfill, land use, incineration, and use of building materials, and most of them have not undergone standardized treatment and disposal. The heavy metals contained in the remaining sludge are not degradable. If they are transported, simply landfilled or stacked without effective treatment, they are likely to cause persistent pollution to groundwater and soil, directly threatening environmental safety and public health. [0003] The heavy metals in the sludge mainly include Pb, Cd, Hg, Cr, Ni, Cu, Zn, etc. The hazards are not only related to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/02C02F11/12C02F11/14C02F101/20C02F101/22
CPCC02F11/00C02F11/02C02F11/121C02F11/14C02F2101/20C02F2101/22
Inventor 潘国良潘捌贡
Owner 陈秀珠