Pilot Experimental Study of a Novel Ecological Ditch Technique for Clear Water Gallery Construction on Changguangxi River
WANG Ziyan
LUO Mei
CHEN Guoliang
XU Fei
YANG Hongwei
HU Xiquan
Abstract：A pilot experiment was conducted for building a so-called "clear-water gallery" to purify micro-polluted river water of Changguangxi River by use of a novel technique of ecological ditch.The ditch was packed with iron and copper filings,and sawdust with a mass ratio of 10(iron)∶1(copper)∶0.5(sawdust).The experiment started from July 3 to August 17 2015,involving the monitoring of influents and effluents of the ditch;water samples were taken every 3 to 5 days and concentrations of TP,DTP,TN,DTN,NH3-N and COD were analyzed,respectively.The result of the experiment showed that the removals of TP,DTP,TN and DTN,being relatively stable,could reach up to 68.61％,76.45％,46.26％ and 50.59％,respectively.However,it seemed that removal efficiencies of NH3-N and COD were unstable,the removal of NH3-N could be up to 73.99％,but removal of COD was not so good (10％～20％).
Keywords：clear water gallerythe ecological ditch techniquethe treatment of slightly polluted watercatalyzed iron internal electrolysis
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 91-95 )