English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Industrial sludge is a by-product which is enormously generated in wastewater treatment plants. Constructed wetland for sludge treatment (CWST) is a low cost, effective technology. This study investigated the effect of various design and operation parameters on the efficiency of four pilot-scale CWSTs to determine the optimal parameters by using the Analytic Hierarchy Process (AHP) for DecisionMaking. The wetland units were planted with Phragmites australis or Typha angustifolia, operated with four sludge loading rate (SLR) (50, 60, 70 and 80 L/m2) and monitored in six different hydraulic retention time (HRT) (2,5,7,9,12 and 14 days). AHP results provided the optimal key parameters (vegetation of P. australis, 14-day HRT, SLR of 60 L/m2) which gave the most effective sludge treatment, reducing 99.8%, 95.16% and 98.23% for COD, TKN and TP, respectively. The results also showed that HRT, SLR and vegetation remarkably affected to the efficiency of CWST. In addition, AHP is an effective method to determine the optimal design and operation parameters of CWST. Received: 17-82017; Accepted: 13-11-2017. This study was funded by CARE RESCIF under grant number Tc-TTC-2017-05. Thanks, are given to members of FENR-CARE for laboratory work. Nguyen Truong An, Le Thi Minh Tam, Tran Quoc Viet, Nguyen Thi Huyen Trang, are with the CARE, Ho Chi Minh City University of Technology VNU-HCM, Vietnam (truongan.hcmut@gmail.com, minhtamnt2006@hcmut.eu.vn, ngthtrang@hcmut.edu.vn) Truong Ngoc Viet, Nguyen Thanh Luan, Nguyen Van Minh, Dinh Quoc Tuc are with the Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology VNUHCM, Vietnam (quoctuc@hcmut.edu.vn, truongngocviet93@gmail.com)

khoa học công nghệ

Recommendation of optimal design and operation parameters for constructed wetland for sludge treatment based on the effect of hydraulic retention time, sludge loading rate and vegetation