JAUE2017-125: Effect of Temperature on the Treatment of Domestic Sewage in Cold Region by Constructed Wetland

Abstract

Artificial wetlands play an important role in the serious problem of sewage treatment at present. Artificial
wetland treatment process has been widely used in terms of ease of operation and maintenance, remarkable effect
of pollutant purification and high ornamental value. The effect of artificial wetland on the purification of domestic
sewage is of great significance to the promotion and application of constructed wetland in the northern area. The
impact of cold area temperature in different types of constructed wetlands on the removal efficiency of nitrogen
and phosphorus showed that:the removal effect of NH4+
-N, NO3
--N,TN was September（23℃~29℃）>October
（17℃~21.5℃）>November（5℃~13℃）.The gravel and Ferric-carbon micro-electrolysis filler substrates to the
TP removal effect was September（23℃~29℃）>October（17℃~21.5℃）>November（5℃~13℃）,the slag
substrate showed September（23℃~29℃）>November（5℃~13℃）>October（17℃~21.5℃).