Beijing University of Technology

China Architecture Design & Research Group Co., Ltd.

Fangzhai Zhang

Xin Zhao

Hao Jiang

Yongzhen Peng

Zhong Wang

Jianye Li

Shang Ren

Jingang Qui

Yongwang Liu

Xingchao Lu

Wenchao Yin

Disclosed is an apparatus and method for synchronously treating sewage and sludge through a step-feed partial nitrification coupling anaerobic ammonia oxidation process, belonging to the biological treatment field. Ammonia rich landfill leachate is firstly pumped into an aerobic reactor to realize partial nitrification process; exogenous surplus sludge coupling with partial nitrification reactor effluent are input to an anoxic reactor together for achieving integrated fermentation and denitrification process; finally, effluent from the anoxic reactor is pumped into an integrated autotrophic nitrogen removal reactor by a step-feed mode, the integrated reactor contains two main running units of aeration and anoxic stirring, ammonia is oxidized into nitrite in aeration stage, and the generated nitrite and ammonia contained in secondary influent are further removed through anammox process which operates stably and reliably, realizes efficient nitrogen removal from landfill leachate without external carbon source addition, and realizes the purpose of exogenous excess sludge reduction simultaneously.

Apparatus and method for synchronously treating sewage and sludge through combination of step-feed partial nitrification and anaerobic ammonia oxidation

An indoor grey water purification and reuse device, system and method for public buildings is disclosed. The grey water purification and reuse device includes a grey water storage tank, a grey water treatment assembly and a pneumatic reclaimed water tank assembly which are sequentially arranged from top to bottom. The grey water storage tank is used for storing grey water from one floor above collected by a grey water collecting device. The grey water treatment assembly is used for carrying out multistage purification treatment on the grey water in the grey water storage tank. The pneumatic reclaimed water tank assembly is used for disinfecting reclaimed water subjected to multistage purification treatment and supplying water to reclaimed water reuse facilities on the current floor of the building in a constant-pressure mode.

Indoor grey water purification and reuse device, system and method for public buildings

Growing community of inventors

Beijing, China

Fangzhai Zhang