+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Treatment effect of constructed wetlands on organic matter in wastewater from pig farm

Treatment effect of constructed wetlands on organic matter in wastewater from pig farm

Ying Yong Sheng Tai Xue Bao 13(1): 113-117

Using plant species Vetiveria zizanioides and Cyperus alternifolius respectively, two constructed wetlands (CWS) with size of 1.0mX0.5mX0.8m were established. The purifying function and its change pattern with season, influent concentration and hydraulic retention time (HRT) of the constructed wetlands on the organic matters in wastewater from a pig farm were studied throughout four seasons in the year. The results showed that the two CWS had very stable effects on the removal of COD and BOD, while the organic matters in wastewater changed. The removal rate of COD and BOD was 70% and 80% respectively by HRT 1apprx2 d in spring. The removal rate of COD reached 90% with the influent of COD 1000apprx1400mgcntdotL-1 in summer. The removal rate of COD and BOD was 50apprx60% and 50% respectively by HRT 1apprx2 d in autumn. The removal rate of COD reached 70% with the influent of COD 1003mgcntdotL-1 in winter. There was no significant difference between two CWS in the removal of COD, BOD and SS. The rule of contaminants decreased with the HRT in CWS followed exponential function: Yt=Y0cntdotexp(-kt). The relation between the concentration of contaminants in influent (x) and outflow (y) at the same HRT followed linear relation: y=a+bx.

(PDF emailed within 1 workday: $29.90)

Accession: 011590741

Download citation: RISBibTeXText

PMID: 11962308

Related references

Effect of influent aeration on removal of organic matter from coffee processing wastewater in constructed wetlands. Journal of Environmental Management 128: 912-919, 2014

Development of constructed wetlands in performance intensifications for wastewater treatment: a nitrogen and organic matter targeted review. Water Research 57: 40-55, 2015

Organic matter, anion, and metal wastewater treatment in Damyang surface-flow constructed wetlands in Korea. Ecological Engineering 32(1): 68-71, 2008

Relationship between the removal of organic matter and the production of methane in subsurface flow constructed wetlands designed for wastewater treatment. Ecological Engineering 83: 296-304, 2015

Indicator pathogens, organic matter and LAS detergent removal from wastewater by constructed subsurface wetlands. Journal of Environmental Health Science & Engineering 12(1): 52-52, 2014

Effect of primary treatment and organic loading on methane emissions from horizontal subsurface flow constructed wetlands treating urban wastewater. Ecological Engineering 80: 79-84, 2015

Organic matter accumulation during maturation of gravel-bed constructed wetlands treating farm dairy wastewaters. Water Research (Oxford) 32(10): 3046-3054, 1998

Removing Organic Matter and Nutrients from Pig Farm Wastewater with a Constructed Wetland System. International Journal of Environmental Research and Public Health 15(5), 2018

Fate of volatile organic compounds in constructed wastewater treatment wetlands. Environmental Science and Technology 38(7): 2209-2216, 2004

Removal of fecal coliforms and organic matter from dairy farm wastewater in a constructed wetland under changing climate conditions. Journal of Environmental Science and Health Part A, Toxic/Hazardous Substances and Environmental Engineering 35(8): 1445-1461, 2000

Effect of high organic loading rates of particulate and dissolved organic matter on the efficiency of shallow experimental horizontal subsurface-flow constructed wetlands. Water Air and Soil Pollution 183(1-4): 367-375, 2007

Organic matter composition, microbial biomass and microbial activity in gravel-bed constructed wetlands treating farm dairy wastewaters. Ecological Engineering 16(2): 199-221, 2000

Effect of the subsurface constructed wetland evolution into free surface flow constructed wetland on the removal of organic matter, nitrogen, and phosphor in wastewater. Huan Jing Ke Xue= Huanjing Kexue 33(11): 3812-3819, 2014

Modelling of organic matter degradation in constructed wetlands for treatment of combined sewer overflow. Science of the Total Environment 380(1-3): 196-209, 2007

Effectiveness of wetlands constructed with different types of organic matter for acid coal mine drainage amd treatment. Bulletin of the Ecological Society of America 71(2 SUPPL): 368, 1990