A combined treatment agent for domestic sewage treatment

Abstract

The invention discloses a combined treatment agent for domestic sewage treatment. The combined treatment agent includes a compound microbial agent, a first-level chemical treatment compound preparation and a second-level chemical treatment compound preparation, wherein the compound microbial agent consists of the following Component composition: 6-8 parts of nitrifying bacteria, 5-7 parts of denitrifying bacteria, 3-5 parts of bacillus, 16-20 parts of phosphorus-accumulating bacteria; the first-level chemical treatment compound preparation is composed of the following components: trichlor 40‑50 parts of ferrous chloride, 22‑26 parts of ferrous sulfate, 6‑8 parts of polyaluminium‑polyacrylamide, 3‑5 parts of polyaluminum‑chitin, 8‑10 parts of aluminum crosslinked rectorite, 16 parts of sodium carbonate ‑20 parts, 25‑35 parts of sodium lauryl sulfate; the secondary chemical treatment composite preparation consists of the following components: 32‑34 parts of modified diatomite, 12‑14 parts of modified fly ash, modified bump Stick clay 44‑48 parts.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a combined treatment agent for domestic sewage treatment. Background technique [0002] Domestic sewage is mainly various detergents used in urban life, sewage, garbage, feces, etc., mostly non-toxic inorganic salts. Domestic sewage contains a lot of nitrogen, phosphorus, sulfur, and many pathogenic bacteria. The sewage generated in the process of human life is one of the main sources of water pollution, mainly feces and washing sewage. The amount of domestic sewage discharged per person in a city is 150-400L per day, which is closely related to the living standard. [0003] Domestic sewage contains a large amount of organic matter, such as cellulose, starch, sugar and fatty protein; it also often contains pathogenic bacteria, viruses and parasite eggs; inorganic salts such as chloride, sulfate, phosphate, bicarbonate and Cu 2+ , Pb 2+ 、Ni 2+ 、Cr 3+ and other heavy metal ions....

AI Technical Summary

Problems solved by technology

These indicators are high, one does not meet the discharge standards, and the other leads to the failure of water resources to be reused

There are many types of sewage treatment agents in the prior art, but in order to increase the sewage treatment effect, a large number of additives are added in the preparation process, and the preparation method is relatively complicated, and the process conditions are relatively high, which has caused certain economic pressure on the factory. , and the sewage treatment effect is not ideal, most of them can only be used as reclaimed water

Moreover, most of the water treatment agents in the prior art are a single treatment result, and do not distinguish the uses and needs of the treated water.