Novel carbon source supplement based on earth surface class III water and preparation method of supplement

Abstract

The invention relates to sewage treatment, in particular to a novel carbon source supplement based on earth surface class III water and a preparation method of the supplement. The novel carbon source supplement is prepared from, by weight, 30-40 parts of alcohols, 5-10 parts of saccharides, 0.1-0.8 part of inorganic salt and 30-40 parts of sodium acetate, the alcohols are one or more selected from methyl alcohol and glycerol, and the saccharides are one or more selected carbohydrates, carbohydrates, inorganic salt and sodium acetate, the saccharides are one or more selected from glucose and cane sugar, and the inorganic salts are one or more selected from sodium salt and potassium salt. The formula is simple, and the preparation cost is low.

Description

technical field [0001] The invention relates to sewage treatment, in particular to a novel carbon source replenisher based on Class III surface water, a preparation method and preparation equipment thereof. Background technique [0002] In the surface water environmental quality standard GB3838-2002, according to the environmental function and protection objectives of surface water waters, it is divided into five categories according to the level of function: [0003] Class I is mainly applicable to source water and national nature reserves; [0004] Class II is mainly applicable to the first-class protected areas of surface water sources for centralized drinking water, habitats for rare aquatic organisms, spawning grounds for fish and shrimp, feeding grounds for juvenile fish, etc.; [0005] Class III is mainly applicable to secondary protection areas of surface water sources for centralized drinking water, fish and shrimp wintering grounds, migration channels, aquaculture...

AI Technical Summary

Problems solved by technology

[0008] Surface Class III water is used the most and has the greatest impact on people's lives. The main technical indicators of Surface Class III water are dissolved oxygen ≥ 5mg / L, permanganate index ≤ 6mg / L, chemical oxygen demand (COD) ≤20mg / L, ammonia nitrogen (NH3-N)≤1.0mg / L, at present, due to the low quality of influent water (mainly COD, BOD5) of urban sewage treatment plants, which is less than the design capacity of sewage treatment plants, resulting in sewage treatment plants There is a shortage of carbon sources during biological nitrogen and phosphorus removal, and it is necessary to purchase additional carbon sources as a supplement, otherwise the effluent of the sewage treatment plant may exceed the standard. The existing carbon sources are generally industrial products such as sodium acetate, methanol, and glucose, with a single component , the effect is uneven, how to achieve a good product effect and a new carbon source that can reduce the operating cost of the sewage treatment plant is particularly important

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