نتایج جستجو برای: constructed wetlands cw

تعداد نتایج: 151309  

Journal: :Water 2023

Excess suspended particulate matter (PM) in constructed wetland (CW) substrates may reduce the substrate porosity and thus affect pollutant removal performance. However, it remains unclear how different PMs nitrogen performance CWs. In this study, kaolin polystyrene (PS) were selected as two model added to CW at a concentration of 100 mg/L. Four CWs constructed, designated C-CW without PM addit...

Journal: :International journal of environmental research and public health 2016
Rita S W Yam Yen-Tzu Fan Tzu-Ting Wang

Pomacea canaliculata (Ampullariidae) has extensively invaded most Asian constructed wetlands and its massive herbivory of macrophytes has become a major cause of ecosystem dysfunctioning of these restored habitats. We conducted non-choice laboratory feeding experiments of P. canaliculata using five common macrophyte species in constructed wetlands including Ipomoea aquatica, Commelina communis,...

2015
Amin Mojiri Lou Ziyang

Constructed Wetland (CW) is a reasonable method to treat wastewater. Current study was carried out to co-treat landfill leachate and domestic wastewater using a CW system. Typha domingensis was transplanted to CW, which encloses two substrate layers of adsorbents named ZELIAC and zeolite. Response surface methodology and central composite design were employed to evaluate experimental data. Cont...

ژورنال: علوم آب و خاک 2019

Today, the use of refined urban wastewater for agriculture is growing considerably. One of the methods for the natural treatment of wastewater is the constructed wetland. In this study, the effects of three and six days retention time on the vertical, horizontal and hybrid constructed wetland (first vertical and then horizontal) with perlite beds and Cyperus plants on the urban wastewater were ...

Journal: :Water Science and Technology 2023

Abstract This study provides a framework for new approach addressed to performing constructed wetlands modeling by using computational fluid dynamics (CFD) coupled with the discrete element method (DEM). methodology is based on adoption of open-source software perform advanced hydraulic simulations that enable provide detailed representation water flow through CFD as well solid phase considerat...

Journal: :Bioresource technology 2005
Beverly S Collins Rebecca R Sharitz Daniel P Coughlin

Plants that accumulate a small percentage of metals in constructed treatment wetlands can contribute to remediation of acidic, metal contaminated runoff waters from coal mines or processing areas. We examined root and shoot concentrations of elements in four perennial wetland species over two seasons in mesocosm wetland systems designed to remediate water from a coal pile runoff basin. Deep wet...

Journal: :Sciscitatio 2023

Keberadaan Bank Sampah Toli-Toli Mandiri (BSTM) telah menjadi fasilitas pengolahan sampah bagi masyarakat dan sekitarnya. Proses di tempat ini meliputi pengumpulan, pemilahan konversi sampah. Lokasi BSTM berdekatan dengan sungai Kalangkangan yang menerima luaran langsung berwujud limbah cair dari BSTM. Pengolahan berupa lindi potensial dilakukan menggunakan sistem filtrasi constructed wetland d...

Journal: :Water Air and Soil Pollution 2023

Abstract Constructed wetlands (CWs) can be considered as an efficient nature-based solution for the treatment of agricultural drainage water (ADW) and consequently mitigation non-point source pollution. Aiming to provide suggestions construction implementation CWs, this paper proposes discusses key parameters CW design operation. In order verify effect these features, different case studies wer...

Journal: :Water 2021

This study demonstrated heavy metal removal from neutral mine drainage of a closed in Kyoto prefecture pilot-scale constructed wetlands (CWs). The CWs filled with loamy soil and limestone were unplanted or planted cattails. hydraulic retention time (HRT) the was shortened gradually 3.8 days to 1.2 during 3.5 months operation. A short HRT sufficient achieve effluent standard for Cd (0.03 mg/L). ...

2008
William E. Walton WILLIAM E. WALTON

Multipurpose constructed treatment wetlands are being used increasingly in the southwestern U.S. to reclaim water, provide habitat for wetlands wildlife, educate the public on issues related to water and wildlife conservation, and fulfill other goals. Whereas, man-made wetlands have proven effective for water treatment, one serious drawback is the potential of some wetlands to produce large num...

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