Abstract
The invention discloses a purifying material for treating sewage and a preparation process thereof. The purifying material contains the following materials in parts by weight: 33-41 parts of vermiculite, 7-15 parts of manganese acetate, 3-7 parts of citral, 15-25 parts of sodium carboxymethyl cellulose, 5-9 parts of guar gum and 0.5-1.2 parts of sodium fluoride. The preparation process comprises the following steps: crushing the vermiculite, mixing with sodium fluoride solution, heating and stirring, centrifugally separating to take precipitates, drying and calcining to obtain a material A; mixing the guar gum and citral solution, sealing, heating and stirring, then mixing with the material A, adding manganese acetate, stirring to be dry, adding the sodium carboxymethyl cellulose and deionized water, carrying out ultrasonic treatment, stirring to be dry, and calcining to obtain the purifying material. The purifying material and the preparation process disclosed by the invention have the advantages that the biochemical oxygen demand, the chemical oxygen demand, the permanganate index, the total phosphorus and the total nitrogen in a polluted water body can be obviously reduced, heavy metals and toxic substances such as fluoride, cadmium and arsenic in the water body also can be effectively reduced, the sewage treating speed is high, the effect is good, and the environment-friendly and non-toxic effects are achieved and the like, so that the purifying material and the preparation process are suitable for industrial production.
Description
technical field
[0001] The invention relates to the technical field of sewage treatment, in particular to a purification material for sewage treatment and a preparation process thereof. Background technique
[0002] With the rapid development of my country's economy, the scale and speed of the development and utilization of lake resources have been greatly enhanced, which has affected the natural evolution process of lakes and caused serious damage to lake ecosystems. With the rapid development of my country's social economy and urbanization process, the problem of lake water environment pollution has become increasingly prominent. A phenomenon in which a lake is polluted by the inflow of sewage. When the sewage flowing into the lake is too much and exceeds the self-purification capacity of the lake, the water quality of the lake will change, which will seriously deteriorate the lake environment, and environmental problems such as eutrophication, organic pollution, shrinkin...
