Purification of landscape water by using an innovative application of subsurface flow constructed wetland

Environmental Science and Pollution Research International
Jih Ming ChyanLuzvisminda M Bellotindos

Abstract

This study attempted to purify eutrophic landscape water under a low pollutant concentration and high hydraulic volume loading using an embedded subsurface flow (SSF) constructed wetland (CW). Three species of aquatic plants (i.e., Cyperus alternifolius subsp. flabelliformis, Canna indica, and Hydrocotyle verticillata) were found to be conducive to the requirements of purifying the low-polluted water. Field results of nearly 2 years of experiments showed that SSF CW purified the eutrophic water and maintained the landscape water in a visibly clear condition. In an environment approaching the SSF CW background concentration, pollutant removal processes were divided into modulation and optimum performance periods. Average concentrations of biochemical oxygen demand (BOD), ammonium-nitrogen (NH4 (+)-N), and total phosphorous (TP) in the optimum performance period were 0.69-1.00, 0.35-1.42, and 0.19-0.23 mg/L, respectively. Almost 500 days of BOD and NH4 (+)-N removals were necessary to perform optimally. A shorter period, 350 days, was required for TP optimum removal. This feature of two stage removals was not found in chlorophyll-a (Chl-a) and suspended solids (SS), whose averages were 11.86-17.98 and 13.30 μg/L, respectively. Fi...Continue Reading

References

Feb 7, 2001·Bioresource Technology·S R JingT W Wang
Apr 15, 2003·Water Research·Christian R SteinmannArnulf Melzer
Jun 1, 2005·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Otto R Stein, Paul B Hook
Sep 13, 2005·Environmental Pollution·Shozo H SugiuraRonaldo P Ferraris
Nov 3, 2006·The Science of the Total Environment·Jan Vymazal
May 18, 2007·Water Science and Technology : a Journal of the International Association on Water Pollution Research·L L BehrendsS Smith
Oct 31, 2007·Journal of Environmental Sciences (China)·Xiao-bin ZhangWen-ren Chen
Nov 28, 2008·Water Research·Gabriel Maltais-LandryFlorent Chazarenc
Feb 13, 2009·Environmental Science & Technology·Walter K DoddsDarren J Thornbrugh

❮ Previous
Next ❯

Citations

Nov 15, 2020·International Journal of Environmental Research and Public Health·Md Ekhlasur RahmanS M Shamsuzzaman

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.