Method for achieving shortcut nitrification by utilizing formic acid

• Main Authors: SUN BING, LI GUODE, CHEN RUIFU, WU SHIWEI, SUN YAFEI, LI NA, HU XIAOMIN, WANG XINYU, LI XUANTING
• Format: Patent
• Language: Chinese; English
• Published: 07.09.2016
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention belongs to the technical field of sewage treatment and particularly relates to a method for achieving shortcut nitrification by utilizing formic acid. The shortcut nitrification is stably achieved by adding the formic acid in a stably operating SBR under same conditions. The method is a chemical method for achieving the shortcut nitrification, has no severe requirements for environment conditions, does not need to control dissolved oxygen, is suitable for domestic wastewater and high-concentration ammonia and nitrogen wastewater and improves the shortcut nitrification reaction rate. 本发明属于污水处理方法技术领域，具体涉及种利用甲酸实现短程硝化的方法，通过在运行稳定的SBR中投加甲酸，其他条件不变，稳定实现短程硝化，本方法为化学法实现的短程硝化，对环境条件无苛刻要求，无需控制溶解氧，适用于生活污水及高浓度氨氮废水，提高了短程硝化反应速率。