Characteristics of hydrogenotrophic denitrification under various temperature conditions
1. Introduction One main source of nitrogen pollution is the effluent from municipal sewage treatment plants. In China, much more plants were demanded to meet the stricter national discharge standard, according to which the limitation of total nitrogen (TN) concentration is taken into account not only ammonia. In some approaching local discharge standards of environmentally fragile areas and developed cities such as Beijing, limit of TN concentration is even below 10 mg/L. Conventional advanced nitrogen removal technology is based on denitrification of heterotrophic bacteria with dosing liquid organic carbon compounds as electron donor. However, the amount of liquid carbon is difficult to be appropriately dosed due to the variation of influent, which accounts for organ ics residue or incompletely denitrification in effluent. A promising and clean technology with high efficiency is hydrogenotrophic denitrification, in which the bacteria utilize hydrogen as electron donor, while assimilating inorganic car on for growth. Hydrogen is harmless to humans and prevents the excess of COD in effluent due to residue organic.
Peng LI Jiane ZUO Lei TANG
State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), School of Environment, Tsinghua University, Beijing 100084, China
国际会议
北京
英文
75-76
2011-11-24（万方平台首次上网日期，不代表论文的发表时间）