Black and odorous water body processing agent and application method thereof

Abstract

The invention discloses a black and odorous water body processing agent, which is prepared from following raw materials in parts by weight: 12 to 15 parts of pH adjuster, whose chemical component is buffer salts; 30 to 40 parts of reactant, whose chemical component is persulfate; 10 to 15 parts of zinc powder, 10 to 15 parts of copper powder, a coagulant aid, which is composed of 5 to 25 parts ofSiO2, 15 to 35 parts of CaCO3, and 0.5 to 2.5 parts of calcium chloride, and a micro-electrolysis agent, which contains 30 to 40 parts of iron powder and 10 to 15 parts of active carbon powder. Through iron powder and active carbon powder of the micro-electrolysis agent, countless primary batteries are formed; primary batteries carry out redox, coagulation, flocculation, adsorption, and catalysisreactions with high concentration organic substances in bottom mud of black and odorous water body; macromolecular organic substances are degraded into micromolecular substances, the COD and toxicityare reduced, the bottom mud is converted into anoxic bottom mud, and the environment of bottom mud is improved. The SiO2, CaCO3, and calcium chloride in the coagulant aid can promote the coagulation of black and odorous water body, increases the B / C ratio, and improves the environment of black and odorous water body.

Description

technical field [0001] The invention relates to the technical field of water restoration, in particular to a treatment agent for black and odorous water and a method for using the same. Background technique [0002] Suitable water temperature, slow water flow and rich nutrients are the salient features of urban rivers and lakes. The black and odorous water body is the biochemical result of the ecological imbalance of the water body caused by excessive pollution and the anoxic environment. Under the anoxic or anaerobic condition of the water body, the pollutants are transformed and produce malodorous substances such as ammonia nitrogen, hydrogen sulfide, and volatile organic acids, as well as iron, Manganese, sulfide and other black substances. [0003] At present, the current situation of urban surface water pollution in my country is very serious. According to the latest 2010 China Environmental Status Bulletin, among the 409 national monitoring sections of surface water i...

AI Technical Summary

Problems solved by technology

Physical and chemical methods are expensive for treating black and odorous water bodies. Some applications abroad have shown that physical and chemical methods are still effective in some treatment examples, and have a better effect on some sewage that is not up to standard with only biological methods.

[0005] In the prior art, coagulants or peroxides are mostly used as a single component to treat black and odorous water bodies. Although these chemical preparations can play a certain role in water restoration, these preparations have great limitations, such as coagulation The agent can only play the role of coagulation, and the time for the peroxide to release oxygen is too short, resulting in the inability to provide oxygen for the water body for a long time, and the effect is greatly reduced