How to treat hotel sewage? Domestic sewage treatment project in hotels, resorts and hotels

Hotel sewage and hotel catering wastewater are mainly a mixture of various wastewaters generated during the business process, including swill and swill generated during the processes of washing vegetables, washing rice, cooking rice, and washing dishes and chopsticks. The composition of catering wastewater is complex, with low pH, high SS, high turbidity, and high organic content. It mainly includes dietary fiber, starch, fat, animal and vegetable oils, various spices, detergents, and proteins. Due to the particularity of the water quality of catering wastewater, the treatment method of hotel catering wastewater is generally divided into two stages: pretreatment and treatment. After treatment, it needs to be disinfected before discharge. Through pretreatment, impurities in sewage are intercepted. For oily substances, they are treated through inclined tube grease traps or air flotation equipment. The treated sewage enters the biological reaction tank of the domestic sewage treatment equipment and undergoes anaerobic anoxia and microbial decomposition. Effectively remove organic matter, nitrogen, phosphorus and other substances. Disinfection emissions are collected centrally.