Characteristics and status of catering waste (1) Catering wastewater complex components, high organic content, the main dietary fiber, starch, fat animal fats, various spices, detergents and proteins. Fats and vegetable oils which contain mostly oil floating on the water surface, the influence of oxygen exchange of air and water interface in an oil in water dispersion can be decomposed microbial oxidation of food waste water processing method, it not only reduces the oil reoxygenation rates and consumption of water dissolved oxygen, water quality deterioration. Dining main pollutants in wastewater colloidal form, low pH, high ss value, turbidity great. BOD, COD value is relatively high. In general, organic ingredients are more restaurants catering sewage wastewater treatment equipment prices, the combined effects of each component between the strong, poor stability, but not toxic, pretreatment is relatively difficult, its emission time a certain regularity dining institution sewage treatment emissions instantaneous flow, noon and night during the peak value is generally the kitchen sewage discharge. (2) Small catering irrational. Most of the catering kitchen layout crowded, limited available space on the dimensions of the sewage treatment plant requires very strict. Sewage treatment nitrification, denitrification process factors: biological nitrogen removal in wastewater treatment, the denitrifying bacteria, denitrifying bacteria play an important role in the biodegradation process for these bacteria have certain environmental conditions: 1) DO: sewage Hypoxia structures treated, the best DO denitrification is 0.5mg / L or less, in the aerobic structures in the aerobic metabolism of organic matter, nitrification bacteria will NH4 + -N oxidized NHx - N, need oxygen, DO should be controlled at 2mg / L or more. DO changes that can significantly affect the total system indicative of microbial nitrification bacteria and the number of changes. When a mixture of low DO concentrations, indicative of microbial nitrification process a small number of nitrification poor; on the contrary, it indicates the number of microorganisms and more dining sewage treatment, nitrification rate increases. However, due to the high concentration of dissolved oxygen on nitrification bacteria have a certain extent, it is under the general control of DO greater than 2mg / L condition of low appropriate. The above picture is only for reference, please consult our detailed models, more models, please visit our official website or call us for Catering sewage treatment fee, Luoyang dining sewage treatment, environmental technology provided by Yu Quan Yu Quan Luoyang sewage treatment Limited. Luoyang Yu Quan Sewage Treatment Co., Ltd. (www.yuquankj.net) strong, credible, in Luoyang, Henan sewage treatment equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Luoyang Yu Quan into the brilliant green and you work for a better future!