Method and system for releasing gas in denitrification deep bed filter

• Main Authors: HUO XIANGMING, ZHANG SILONG, QIAN JIAN, GUO LINLIN, ZHANG XIAOGANG, ZHANG JIANCHUN, WU ZHONGHUA
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2017
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a method and system for releasing gas in a denitrification deep bed filter. The method for releasing gas in the denitrification deep bed filter comprises the following steps: monitoring the concentration of nitrogen gas in a filter layer in the denitrification deep bed filter during denitrification; selecting whether water backwashing is started or not according to the monitored concentration of nitrogen gas; when the water backwashing needs to be started, adjusting the water backwashing strength to be gradually increased in the water backwashing process. Through the above-mentioned way, the method provided by the invention has the advantages of reducing the effect of gas release on a microbial film, improving the gas release rate, prolonging the gas release interval and filter period of the denitrification deep bed filter, and reducing the operating energy consumption of the filter. 本发明公开了种释放反硝化深床滤池中气体的方法和系统，所述释放反硝化深床滤池中气体的方法包括：监测脱氮过程中反硝化深床滤池中滤料层中的氮气浓度；根据监测到的氮气浓度选择是否开启水反冲；在需要开启水反冲时，在水