Adsorbent used for processing domestic sewage

Abstract

The invention discloses an adsorbent used for processing domestic sewage. The adsorbent comprises the following raw materials in parts by weight: 70-80 parts of wooden activated carbon, 20-30 parts of active alumina, 30-35 parts of walnut peels carbon powder, 10-15 parts of bamboo charcoal, 20-25 parts of bentonite, 10-15 parts of sepiolite, 15-20 parts of attapulgite, 5-10 parts of silica, 5-10 parts of peanut shell, 3-5 parts of sodium hydroxide and 2-5 parts of calcium oxide. The adsorbent has strong adsorption capability for an organic matter in the sewage, has high clearance rate of COD, BOD and total phosphorus, can remove peculiar smell in the sewage, cannot generate secondary pollution, can be regenerated, and has advantage of low cost.

Description

technical field [0001] The invention belongs to the technical field of adsorption, and in particular relates to an adsorbent for domestic sewage treatment. Background technique [0002] With the acceleration of urbanization, the increase of urban population and the strengthening of environmental awareness, the discharge of urban industrial wastewater and domestic sewage is increasing, and the rate of urban sewage treatment is also increasing year by year. The treatment of sewage is inseparable from adsorption treatment technology. Adsorption treatment Technology refers to the technology that uses the strong adsorption properties of substances to remove pollutants in water. The commonly used adsorbents for water treatment are activated carbon (AC), diatomaceous earth, activated alumina, synthetic resin, etc. [0003] However, its application is limited due to its difficult regeneration and high cost. Contents of the invention [0004] The purpose of the present invention i...

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Problems solved by technology

[0003] However, its application is limited due to its difficult regeneration and high cost.