A treatment method for removing heavy metals in industrial wastewater

A technology for industrial wastewater and treatment methods, applied in multi-stage water treatment, water/sewage treatment, aerobic process treatment, etc., can solve the problems of unstable treatment effect, high cost, complex technology, etc. Low cost of application and replacement, good treatment effect

Active Publication Date: 2017-05-10
GUANGZHOU HUAKE ENVIRONMENTAL PROTECTION ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Due to the shortcomings of the above-mentioned traditional treatment methods such as high cost, complicated technology, and unstable treatment effect, it is necessary to get rid of the existing treatment technology ideas, open up a new way to treat heavy metals in industrial wastewater, and then develop a new form of industrial wastewater Heavy Metal Treatment Technology

Method used

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  • A treatment method for removing heavy metals in industrial wastewater
  • A treatment method for removing heavy metals in industrial wastewater

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Embodiment Construction

[0023] Such as figure 1 As shown in the treatment method for removing heavy metals in industrial wastewater, industrial wastewater containing heavy metals enters the collection well 1 through the wastewater pipeline, where centralized collection and preliminary stabilization are performed, and the outlet of the collection well 1 is connected to the coarse grid 2 through the wastewater pipeline. This removes large-diameter solid substances in industrial wastewater. The outlet of the coarse grid 2 is connected to the primary sedimentation tank 3 through the wastewater pipeline, where insoluble materials in the wastewater are further removed, and the outlet 3 of the primary sedimentation tank is connected to the pH adjustment tank through the wastewater pipeline 4. The wastewater is neutralized here and the pH value is accurately adjusted. The pH value of the effluent of the pH value adjustment tank 4 is 7.5~8.5 to meet the pH requirements of the original pectin-heavy metal rotary a...

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Abstract

The invention discloses a treatment method for removing heavy metal in industrial wastewater. The wastewater can be treated through a water collecting well, a coarse screen, a primary settling pond, a pH value adjusting pond, a protopectin-heavy metal rotary adsorption pond, an aerated nitrification pond, a biological nitrogen removal pond, a secondary settling pond, a water purifying pond and the like. According to the method, a V-type screen-type roller containing pumpkin peel is creatively used as a contact reaction medium, when the wastewater containing heavy metal is fully mixed with the pumpkin peel, heavy metal ions in the wastewater are adsorbed through the adsorption function of non-water-soluble protopectin in pericarpic cells, and part of residues deposit at the bottom of the adsorption pond and gradually form sludge matter. Meanwhile, the pumpkin peel in the V-type screen-type roller serves a low-value consumable and can be replaced according to use and consumption conditions.

Description

Technical field [0001] The invention relates to a treatment method for removing heavy metals in industrial wastewater, and belongs to the field of wastewater treatment in environmental protection. Background technique [0002] Heavy metal pollution refers to environmental pollution and ecological damage caused by heavy metals and their compounds. The degree of damage depends on the concentration and chemical form of heavy metals in the environment, food and organisms. Heavy metal pollution is mainly manifested in water pollution, and part of it is in the atmosphere and solid waste. Heavy metal pollution is different from the pollution of other organic compounds. Many organic compounds can be purified through the physical, chemical or biological effects of the natural world to reduce or eliminate their hazards. Heavy metals are enriched and difficult to degrade in the environment. [0003] From the perspective of environmental pollution, the most representative heavy metal pollutio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28C02F9/14C02F101/16C02F101/20
CPCC02F1/001C02F1/286C02F3/02C02F9/00C02F2001/007C02F2101/163C02F2101/20C02F2201/007C02F2301/08
Inventor 庞志华赵坤荣骆其金周伟坚梁文钟黄亚丽
Owner GUANGZHOU HUAKE ENVIRONMENTAL PROTECTION ENG
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