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Treatment method of mine pothole waste water containing heavy metals

A treatment method and heavy metal technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve secondary pollution, difficulty in wastewater reuse, difficult reuse of treated water, etc. problem, to achieve the effect of less pollution

Inactive Publication Date: 2012-12-12
工信华鑫科技有限公司
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Problems solved by technology

However, this method has the disadvantages of slow propagation speed and reaction rate of functional bacteria, and difficult reuse of treated water.
[0024] To sum up, the traditional chemical and physical methods to treat copper-containing wastewater generally have a high metal concentration in the effluent, which is prone to secondary pollution and difficult to reuse wastewater. Therefore, the research and development of large treatment capacity can remove various metal ions and recover valuable Heavy metals, good water quality, reusable and other characteristics of new technology and new technology are imminent, and are valued by more and more experts and scholars

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  • Treatment method of mine pothole waste water containing heavy metals
  • Treatment method of mine pothole waste water containing heavy metals
  • Treatment method of mine pothole waste water containing heavy metals

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Embodiment 1

[0045] figure 1 It is a schematic flowchart of a method for treating heavy metal-containing wastewater from mine pits provided in this embodiment. It mainly includes the following process steps:

[0046] Step 101: Adjusting the pH value of the mine leaching wastewater in the regulating tank, so that the iron in the mine pit wastewater containing heavy metals is precipitated.

[0047]Because the heavy metal wastewater in mine pits is relatively turbid and contains various impurities and various possible metal elements, before carrying out the main treatment of this embodiment, carry out the pretreatment of this step and adjust the pH value (adjust to a pH value of 3 -5), so that the iron is removed by precipitation, so as to reduce the impact of iron on the exchange and adsorption of heavy metal exchange substances when the heavy metal-containing wastewater in the mine pit passes through the adsorption exchange column.

[0048] After the PH adjustment of the adjustment pool, ...

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Abstract

The invention relates to the field of heavy metal waste water treatment, and discloses a treatment method of mine pothole waste water containing heavy metals. The method comprises the steps that: mine pothole waste water containing heavy metals is delivered from the bottom of an absorption exchange column loaded with a heavy metal absorption material; the waste water is processed by the absorption exchange column, and is discharged from the top of the absorption exchange column. When the heavy metal ions in the mine pothole waste water containing heavy metals pass through the heavy metal absorption material, the heavy metal ions are absorbed on the surface of the heavy metal absorption material; when the heavy metal ions on the surface of the heavy metal absorption material are enriched to a saturated degree, a sulfuric acid solution with a certain concentration is used for desorbing the heavy metal ions absorbed on the surface of the heavy metal absorption material; the desorption liquid is subjected to electrodeposition, such that high-purity heavy metal materials are obtained. With the method provided by the invention, discharged pothole waste water can stably reach a standard, and metal recovery is also achieved. Therefore, enterprise efficiency and environmental safety are both ensured.

Description

technical field [0001] The invention relates to the field of heavy metal-containing wastewater treatment, in particular to a method for treating heavy metal-containing wastewater in mine pits. Background technique [0002] With the increasing production activities such as mining, smelting, and processing of heavy metals, the heavy metal wastewater produced has greatly increased in both quantity and type, causing a lot of heavy metals to enter the ecosystem and causing serious environmental pollution. and waste of resources. Therefore, the treatment of heavy metal wastewater has always been a major issue in the field of environmental protection in the world. [0003] The heavy metal-containing wastewater mainly comes from mechanical processing, mining industry, iron and steel and non-ferrous metal smelting and some chemical enterprises. For example, the heavy metal-containing wastewater produced by the mining industry is mainly mining and mineral processing wastewater, whic...

Claims

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Application Information

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IPC IPC(8): C02F9/06
Inventor 邱建宁赵路田春友雷蕾陈颖李倩高洪波
Owner 工信华鑫科技有限公司
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