Composite type high-efficiency adsorbent for purifying water

Abstract

The invention relates to the technical field of water purifying agents and particularly relates to a composite type high-efficiency adsorbent for purifying water. The composite type high-efficiency adsorbent is prepared from the following components of: wooden activated carbon, calcined bentonite, coal tar, hydroxymethyl cellulose, modified calcium carbonate, sulfydryl wooden cellulose, montmorillonite, sodium hydroxide solution, hydroxyapatite, a binding agent and a pore-forming agent, wherein the hydroxyapatite is powder obtained by soaking desulfurized gypsum in phosphate solution, then conveying into a polytetrafluoroethylene reaction kettle for ageing and centrifugation, finally washing, drying and grinding; the binding agent is attapulgite clay; the pore-forming agent is one or mixture of more of ammonium carbonate, ammonium hydrogen carbonate and sodium hydrogen carbonate. The composite type high-efficiency adsorbent has the beneficial effects that the adsorbing efficiency is high, the spectrum for adsorbing pollutants can be broader, and due to use of a large amount of industrial side products, the production cost of the adsorbent can be obviously reduced and the environmental-friendly and economic benefits are higher.

Description

technical field [0001] The invention relates to the technical field of water purifiers, in particular to a composite high-efficiency adsorbent for purifying water. Background technique [0002] Human production and life will produce a large amount of wastewater, which contains pollutants such as heavy metals, organic matter and suspended solids that are harmful to organisms. If these wastewater are not purified and discharged directly into the environment, ecological water resources will be damaged. Cause serious pollution and affect the normal physiological activities of humans and other living organisms in the biological world. [0003] Adsorption is the most important part of wastewater treatment. Through specific adsorbents, organic matter, heavy metals and inorganic substances in wastewater can be effectively absorbed, thereby purifying the water quality to the extent that it can be directly discharged. Used in the environmental protection treatment process The adsorbe...

AI Technical Summary

Problems solved by technology

[0004] However, most of the resources of these adsorbent components are non-renewable resources, especially biomass resource materials such as activated carbon, which cannot be recycled after use, and the cost of using these materials for water purification treatment is relatively high; Components, different types of adsorbents are used for step-by-step and directional removal, so the process of this treatment method is relatively complicated