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Treatment method for industrial oil-containing heavy metal wastewater

A treatment method and heavy metal technology, applied in multi-stage water treatment, water/sewage treatment, aerobic process treatment, etc., can solve problems such as hindering the removal of heavy metals and reducing the treatment effect of heavy metal ions, so as to achieve reuse and reduce production , the effect of reducing operating costs

Inactive Publication Date: 2017-10-27
苏州工业园区世普瑞环保科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] But now heavy metal ions often exist in oily wastewater, because the presence of oil in the water seriously hinders the removal of heavy metals, reducing the treatment effect of heavy metal ions

Method used

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  • Treatment method for industrial oil-containing heavy metal wastewater
  • Treatment method for industrial oil-containing heavy metal wastewater
  • Treatment method for industrial oil-containing heavy metal wastewater

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Embodiment Construction

[0026] Such as figure 1 As shown in the treatment method for removing heavy metals in industrial wastewater, industrial wastewater containing oily 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 solids in industrial wastewater. The outlet of the coarse grid 2 is connected to the microbubble air-floating mineral oil adsorption device 3 through the waste water pipeline, and the π-allyl nickel compound in the microbubble air-floating mineral oil adsorption device 3 After the modified diatomite adsorption membrane 42 completely adsorbs the mineral oil, it will be grabbed by the stainless steel mechanical arm 34 and sent to the mineral oil catalytic re-desorption reactor 4, and the heavy oil generated in the mineral oil catalytic re-desorption reactor 4...

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Abstract

The invention discloses a treatment method for industrial oil-containing heavy metal wastewater. Wastewater sequentially passes through a water collecting well, coarse grids, a microbubble gas float mineral oil adsorbing device, a mineral oil catalytic resorption reactor, a protopectin-heavy metal rotary adsorption tank, an aeration nitrifying pool, a biological denitrification pool, a settling pond and a water purifying tank. According to the system, a V-shaped reticular roller filled with pumpkin peel is creatively utilized as a contact reaction medium; and when the wastewater containing heavy metal is sufficiently mixed with the pumpkin peel, heavy metal ions in the wastewater are adsorbed by using an adsorbing effect of non-water soluble protopectin in pericarpic cells, and part of residues are precipitated at the bottom of the adsorption tank to gradually form sludge materials. Besides, the pumpkin peel in the V-shaped reticular roller is used as a low-value consuming material and can be replaced according to use and consumption conditions.

Description

Technical field [0001] The invention relates to a method for treating oily heavy metal industrial wastewater, which 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 pollution is me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/24C02F1/281C02F1/285C02F1/286C02F1/288C02F1/40C02F3/00C02F3/02C02F9/00C02F2001/007C02F2101/16C02F2101/20C02F2101/32C02F2201/002C02F2201/007C02F2301/08C02F2303/16
Inventor 倪海霞
Owner 苏州工业园区世普瑞环保科技有限公司
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