Activated sludge for treating domestic sewage, preparation method and domestic sewage treatment method

• Main Authors: SHAN ZELIN, ZHANG LEI, SHAN LIANBIN, WEI CHUNFEI, WANG YUNMEI, ZHAO YONGJIAO
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; VINEGAR; WINE

The invention relates to the technical field of sewage treatment, in particular to activated sludge for treating domestic sewage, a preparation method and a domestic sewage treatment method. The invention discloses activated sludge for treating domestic sewage. The activated sludge comprises first activated sludge and second activated sludge, the first activated sludge is prepared from nitrosomonas, nitrobacter, lactobacillus plantarum, white-rot fungi, rhodopseudomonas, lactobacillus acidophilus and propionibacterium propionate; the second activated sludge comprises pseudomonas alcaligenes, acetobacter malate, lactic acid bacteria and photosynthetic bacteria. The domestic sewage is subjected to activated sludge treatment, and the domestic sewage can be effectively purified. The activated sludge can obviously improve the operation stability of a biochemical system and improve the impact resistance of the system. Compared with a treating agent in the prior art, the COD removal rate and the ammonia nitrogen rem