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METHOD FOR INTEGRATED ADSORPTION TREATMENT OF WASTEWATER GENERATED DURING WASHING OF TECHNOGENIC SOILS
METHOD FOR INTEGRATED ADSORPTION TREATMENT OF WASTEWATER GENERATED DURING WASHING OF TECHNOGENIC SOILS
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机译：技术污泥洗涤过程中产生的废水综合吸附处理方法
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摘要
The invention relates to the field of ecological safety and may be used for reclamation of technogenic soils, so called previously accumulated environmental damage objects, which are contaminated areas of former chemical industry facilities, fuel and energy sector and mining and smelting facilities, abandoned industrial and domestic waste landfills, warehouses of chemical pesticides unfit for use, etc. The technical result of the offered invention is an adsorption treatment method for wastewater produced during washing (leaching) of technogenic soils. Wastewater is characterized by a high content of fine dispersions (they define water turbidity), humates (they define water colour), soluble substances of organic and inorganic nature, and pathogenic microflora. For wastewater reuse (recycling) in the leaching process, wastewater preparation for vegetation watering or for discharge into water bodies, contaminants must be removed to maximum permissible limits. An integrated adsorption treatment method for wastewater produced during washing (leaching) of technogenic soils characterized in that contaminants of organic and inorganic nature (oil products, heavy metal ions, oils, pesticides, arsenic compounds, suspensions, etc.) and pathogenic flora are adsorbed and decontaminated using an integrated adsorption filter having a high absorbing capacity, which is achieved by forcing wastewater through two tandem filters (as shown in Fig. 1) with adsorbents of hydrophilic (filter 1) and hydrophobic (filter 2) nature.
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