domestic wastewater Articles - page 4

Domestic Wastewater Treatment Plant Biopipe for Hampton By Hilton / Istanbul - Case Study

Hilton Worldwide is one of the well-known brand on tourism. With more than 550 locations in 6 continent, Hilton has provided high quality service to customers for over 90 years. Awareness of limited natural sources, preparing a sustainable reports, actions of reducing carbon, water and energy usage and admins it of all Hilton as a commitment are just a few examples of Hilton’s point of view ...

Feb. 1, 2016

By Biopipe Global Corp.

Probabilistic analysis of risks to U.S. drinking water intakes from 1,4‐dioxane in domestic wastewater treatment plant effluents

The risks of 1,4‐dioxane (dioxane) concentrations in wastewater treatment plant (WWTP) effluents, receiving primarily domestic wastewater, to downstream drinking water intakes was estimated using distributions of measured dioxane concentrations in effluents from 40 WWTPs and surface water dilution factors of 1,323 drinking water intakes across the U.S. Effluent samples were spiked with an ...

May 24, 2013

By John Wiley & Sons, Ltd.

Small domestic wastewater treatment using waste materials

Phosphorus pollution of groundwater from small wastewater system is often considered as a major threat for aquatic habitats. Recirculating biofilters are often used to treat small wastewater systems without significant removal of phosphorus. In this paper, a low-cost waste material (dried alum residual) in pre-treated effluents from recirculating biofilters was examined. Two different types of ...

Feb. 24, 2014

By Inderscience Publishers

Domestic Wastewater Treatment Plant Biopipe for Narkoy Ecological Hotel - Case Study

Narköy is the branch of Nar Education and Consultancy company, sustainable tourism center and organic farm. Narkoy is projected in Kandıra where is 2 hours distance to Istanbul. It is a concept project and composed of hotel, school ( workshops for companies) and a farm. Their one of the major problem is the lack of infrastructure and a excessive landspace area. Another main issue is to ...

Oct. 1, 2015

By Biopipe Global Corp.

Do nonwovens offer a cheaper option?

Untitled Document Could nonwoven filtration material be used as a viable, cheaper alternative to hollow fibre membranes in submerged membrane bioreactors, without a loss in performance? Filtration + Separation takes a look at one research report that thinks so. Nonwoven for the MBR – why bother? The Membrane Bioreactor (MBR) is an evolving process that combines ...

Jun. 22, 2005

By Filtration + Separation - Elsevier Ltd

A comparative study for pathogen removal using different filter media during vermifiltration

The present study focuses on the effect of filter media (riverbed gravel, mud balls, coal and glass balls) for the removal of pathogens during vermifiltration of domestic wastewater. This novel study was conducted for the first time on different vermifilters (VFs) with different media, and pathogen removal was extensively investigated for a period of 3 months. Results indicated that vermifilter ...

Sep. 29, 2014

By IWA Publishing

Substrate removal kinetics and performance assessment of a vermifilter bioreactor under organic shock load conditions

In the present study, the effect of short-term organic shock loads (675, 799, 1,084 and 1,410 mg COD/L) on the treatment performance of a pilot-scale vermifilter (VF), employing an epigeic earthworm Eisenia fetida and treating synthetic domestic wastewater is investigated. The effect of organic shock loads on the performance and stability of vermifiltration reactor was evaluated to identify ...

Jun. 22, 2016

By IWA Publishing

Water Quality and Toxicity Assessment in Koronia Lake - Greece

Abstract :Lake Koronia, located in Northern Greece, is an environmentally sensitive area protected by Ramsar Convention. However, COD values higher that 900 mg/l and nitrate-nitrogen concentration higher than 10 mg/l were measured in the lake water. Furthermore, toxicity bioassays based onDaphnia magna, resulted in mortality values of test species higher than 40% in the lake water. The poor water ...

Jan. 8, 2020

By Microbiotests Inc.

Treatment of domestic wastewater with an anaerobic ceramic membrane bioreactor (AnCMBR)

In this study, a ceramic membrane with a pore size of 80 nm was incorporated into an anaerobic membrane bioreactor for excellent stability and integrity. Chemical oxygen demand (COD) removal efficiencies by biodegradation reached 78.6 ± 6.0% with mixed liquor suspended solids (MLSS) of 12.8 ± 1.2 g/L. Even though the total methane generated was 0.3 ± 0.03 L/g CODutilized, around 67.4% of it ...

Sep. 5, 2015

By IWA Publishing

Microbial diversity and community composition in recirculating vertical flow constructed wetlands

Microorganisms constitute a central component of constructed wetlands (CWs), playing a major role in these systems' capacity for treating wastewater. The aim of this study was to determine the diversity and composition of the microbial community found in a recirculating vertical flow CW (RVFCW) bed fed with primarily settled domestic wastewater and its response to the presence of plants, season ...

Dec. 1, 2011

By IWA Publishing

Nitrogen transformations and mass balance in an integrated constructed wetland treating domestic wastewater

Nitrogen (N) transformations and removal in integrated constructed wetlands (ICWs) are often high, but the contributions of various pathways, including nitrification/denitrification, assimilation by plants and sediment storage, remain unclear. This study quantified the contributions of different N removal pathways in a typical multi-celled ICW system treating domestic wastewater. Findings ...

Nov. 18, 2014

By IWA Publishing

Load limit of a UASB fed septic tank-treated domestic wastewater

Performance of a 250 L pilot-scale up-flow anaerobic sludge blanket (UASB) reactor, operated at ambient temperatures, fed septic tank effluents intermittently, was monitored for hydraulic retention time (HRT) from 18 h to 4 h. The total suspended solids (TSS), total chemical oxygen demand (CODT), dissolved chemical oxygen demand (CODdis) and suspended chemical oxygen demand (CODss) removal ...

Jul. 14, 2015

By IWA Publishing

Practical Applications of Static Low Density Media Filters for Use in the Treatment of Domestic Wastewater

ABSTRACTIn the treatment of domestic wastewater, both biological and physical contaminant removal mechanisms must occur to facilitate compliance with NPDES permit discharge requirements. Static low density media (SLDM) filters can be used to perform both of these duties allowing for the consolidation of various unit operations into one component. Previous studies have shown that both organic and ...

Oct. 22, 2006

By Water Environment Federation (WEF)

Kinetics of organic matter and ammonia removal in horizontal reed beds treating wastewater in Nepal

In Nepal, both horizontal bed and vertical bed subsurface flow constructed wetlands have been used for wastewater treatment. However, these units were designed based on the empirical findings from other countries. The rational design criteria developed so far has some limitations as the performance of the units is sensitive to the behaviour of the microorganisms, climatic conditions and other ...

Aug. 10, 2015

By IWA Publishing

Domestic wastewater treatment by a constructed wetland system planted with rice

The experiments were conducted in four concrete laboratory scale free water surface constructed wetland units 1 m wide, 1.5 m long and 0.8 m deep. Paddy field soil was added to a depth of 0.4 m and rice seedlings (Oryza sativa L.) were transplanted into the units at a density of 25 plants/m2. Domestic wastewater collected from Chiang Mai University was applied into each unit via two different ...

Dec. 1, 2011

By IWA Publishing

Influence of high organic loads during the summer period on the performance of hybrid constructed wetlands (VSSF + HSSF) treating domestic wastewater in the Alps region

One of the limits for the application of constructed wetlands (CWs) in mountain regions (such as the Alps) is associated with the considerable land area requirements. In some mountain areas, the treatment of domestic wastewater at popular tourist destinations is particularly difficult during the summer, when the presence of visitors increases hydraulic and organic loads. This paper aims to ...

Feb. 1, 2012

By IWA Publishing

Silivri Municipality - Case Study

Project Name Silivri Municipality Wastewater Treatment Plant Employer Silivri Municipality Contractor Enta Muhendislik Antma Taah. San. Ve Tic. Ltd. Sti. Location of the plant Istanbul/TURKEY Scope of work Domestic Wastewater Treatment Plant Contract Date 1995 Completion date 1995 Flowrate of the plant: 1.400 m3/day Units of the Plant: Physical Treatment Unit Static Screen ...

Nov. 5, 2018

By ENTA Treatment Systems Engineering Contracting Corporation

Low-temperature limitation of bioreactor sludge in anaerobic treatment of domestic wastewater

Two strategies exist for seeding low-temperature anaerobic reactors: the use of specialist psychrophilic biomass or mesophilic bioreactor sludge acclimated to low temperature. We sought to determine the low-temperature limitation of anaerobic sludge from a bioreactor acclimated to UK temperatures (<15 °C). Anaerobic incubation tests using low-strength real domestic wastewater ...

Mar. 13, 2014

By IWA Publishing

Simultaneous nutrients and carbon removal from low-strength domestic wastewater with an immobilised-microorganism biological aerated filter

To improve the efficiency of low-strength domestic wastewater treatment, an immobilised-microorganism biological aerated filter (I-BAF) was established for simultaneous carbon, nitrogen and phosphorus removal. The I-BAF performance was systematically evaluated under continuous and intermittent aeration modes. At the optimal condition with an intermittent aeration control schedule of 2 h on/1 h ...

Mar. 1, 2011

By IWA Publishing

Sivas Municipality – Case Study

Project Name Sivas Wastewater Treatment Plant Employer Sistem Yapi Jnsaat Tic. A.§. Contractor Enta Muhendislik Aritma Taah. San. Ve Tic. Ltd. §ti. Location of the plant Sivas/TURKEY Scope of work Domestic Wastewater Treatment Plant Supply of Equipment and installation Contract Date 2008 Completion Date 2008 Flowrate of the plant: 78.500 m3/day Units of the Plant: Physical ...

Nov. 3, 2018

By ENTA Treatment Systems Engineering Contracting Corporation

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