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Showing 1 to 20 of 87 for “"constructed wetlands"”.
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Strategies for systemic urban constructed wetlands
… can be more effective. In the last 20 years, constructed wetlands have arisen as a promising multi-purpose solution to stormwater problems. Constructed wetlands are artificial systems designed to mimic natural wetlands by using the same physical, biological, and chemical processes to treat …
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Urban wastewater treatment with mature constructed wetlands
… acceptance for the application of vertical-flow constructed wetlands (VF CWs) as sustainable and cost-efficient technology in treating various types of wastewater, including urban wastewater, continuous loading of wetlands over time can lead to performance inefficiency and generate operational …
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Evaluation of Continuous Flow Constructed Wetlands Treating Swine Waste
The ability for wetlands to purify contaminated water is not a new concept. Natural wetlands have been cleansing water within our environment for ages. After studying the process of natural wetlands the same concept was applied to municipal waste. It is the success of constructed wetlands treating …
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Constructed wetlands : a growing opportunity for the construction industry
Thesis: M.S., Massachusetts Institute of Technology, Department of Civil Engineering, 1992
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Treatment of synthetic wastewater containing textile dyes with experimental constructed wetlands
… biological treatment technologies, such as constructed wetlands are a sustainable and cost-effective alternative technology to treat large quantities of contaminated water, especially in places where land costs are low. Four small scale experiments were conducted between July 2014 and June …
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Investigation of constructed wetlands capability to remove mercury from contaminated waters
Wetlands have been known as an efficient and low-cost technology in treating wastewater. It was reported that wetlands (natural and constructed) were used to purify (a) municipal; (b) industrial; (c) acidic; and (d) agricultural wastewater. Mercury has been used intensively by wide variety of …
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Efficacy Of Constructed Wetlands Of Various Depths For Natural Amphibian Community Conservation
<p>Wetlands provide critical habitat for a diverse group of amphibians and provide important ecosystem functions and services to humans. Despite this, most natural wetlands have been lost to land use practices. Consequently, constructing wetlands has become a common practice to mitigate for removed …
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Azo textile dyes wastewater treatment with constructed wetlands : design and operation of experimental vertical-flow constructed wetlands applied for the treatment of azo textile dyes (with/without artificial wastewater)
Wetlands have long played a significant role as natural purification systems. Textile industry processes are among the most environmentally unsustainable industrial processes, because they produce coloured effluents in large quantities polluting water. The aim of this study is to assess the …
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Effectiveness of Wastewater Treatment for Selected Contaminants Using Constructed Wetlands in Mediterranean Climates
<p>Constructed wetlands for wastewater treatment (CWWT) are engineered wetland systems created to emulate the processes that occur in natural wetlands. This research focused on looking at the effectiveness of selected contaminant removal based on pilot-scale and full-scale case studies conducted in …
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On the use of Constructed Wetlands in mountain regions: innovative tools and configurations
The use of Constructed Wetlands (CWs) has been increasing over the last twenty years for decentralized wastewater treatment projects (e.g. rural communities, isolated houses, etc.) because of the low maintenance requirements and operational costs, efficiency in terms of organic matter, nitrogen and …
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Investigating green walls for greywater treatment and visualising enzymatic activity in constructed wetlands
L'abstract è presente nell'allegato / the abstract is in the attachment
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Residence Time Distributions in Constructed Wetlands and Their Application to Modeling Nitrate Removal
Nitrate was used as a on-conservative compound along with a conservative compound to assess mass transport at the soil-water interface. Calibration of these tests yielded nitrate mass transfer coefficients. Even though no particular trend was observed for the nitrate mass transfer coefficients, the …
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Evaluation of the subsurface vegetated bed form of constructed wetlands for domestic wastewater treatment
… latifolia</i>)]. Twelve larger scale SVBs were constructed at the Powell River Project (PRP) site, Wise County, VA. Treatment consisted of three detention times (4, 8, 12 days) with the same plant species (cattail and woolgrass). At the WP site, pollutant removal incresed with detention time for …
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Evaluation of Constructed Wetlands for the Waste Management of a Large Scale Swine Production Unit
The effectiveness of using constructed wetlands to remove unwanted nutrients, increase dissolved oxygen while at the same time decreasing the biological oxygen demand, and to reduce the levels of the Fecal Coliform Bacteria from a swine operation was evaluated. The indicator of proper waste …
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Geochemistry of a constructed wetlands receiving acid mine drainage: metal behavior and nanoparticle surface chemistry
Includes bibliographical references (leaves 112-117).
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Performance Evaluation of the Town of Monterery Wastewater Treatment Plant Utilizing Subsurface Flow Constructed Wetlands
… the Monterey WWTP utilizing subsurface flow (SF) constructed wetlands. Previous work with SF wetlands has demonstrated adequate, but variable removal of organic matter, suspended solids, and nitrogen. Few research studies have observed the generation of compounds in the wetlands that affect other …
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Understanding how microbial community contributes to wastewater treatment performance in constructed wetlands within Scotch whisky distilleries
Constructed wetlands (CWs) play a crucial role in biological water treatment, particularly within the Scotch whisky industry. The first parth of this thesis explores methods to enhance biodiversity information from wetlands. It focuses on optimising DNA yield, comparing substrates, and evaluating …
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Chloride Salts Removal by non Planted Constructed Wetlands Receiving Synthetic Brines from Belle Plaine Potash Mining
Four pilot-scale constructed wetlands (CWs) were employed to study the fate and transport of the two dominant chloride salts (NaCl and KCl) receiving the synthetic brine. The characteristics of the brine solution are made up with a 10:1 concentration ratio between NaCl and KCl based on data …
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