effluent flow Articles | Environmental XPRT

Foil Company Improves Wet Scrubbing Performance While Reducing Effluent Flows - Case Study

A major supplier of copper foil operates several plants in the U.S. The production process includes plating a thin strip of copper onto a steel roller, coiling the foil and shipping it to the end user. The copper foil line utilizes large steel rollers which are regularly hard chrome plated for wear resistance and texture. Roll plating is done in-house, in three large hard chrome plating tanks at ...

Dec. 30, 2020

By Midwest Air Products Co., Inc. (Mapco)

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

Using numerical simulation of a one stage vertical flow wetland to optimize the depth of a zeolite layer

This simulation study investigates the treatment performance of a compact French vertical flow wetland using a zeolite layer in order to increase ammonium nitrogen removal. For the modelling exercise, the biokinetic model CW2D of the HYDRUS Wetland Module is used. The calibrated model is able to predict the effect of different depths of the zeolite layer on ammonium nitrogen removal in order ...

Nov. 28, 2016

By IWA Publishing

Baccelerator saves thousands in capital cost

A large residential College in the north of England housing 550 live-in students and 450 non-resident staff operates its own on-site effluent treatment plant to treat all foul waste arising before discharge to local sewer. The effluent plant constructed in 1991 comprises an inlet settlement tank at the head of the works from where the clarified influent feeds by gravity the coke filtration ...

Apr. 1, 2011

By Cleveland Biotech Ltd.

Effects of scale and Froude number on the hydraulics of waste stabilization ponds

This paper presents the findings from a series of computational fluid dynamics simulations to estimate the effect of scale and Froude number on hydraulic performance and effluent pollutant fraction of scaled waste stabilization ponds designed using Froude similarity. Prior to its application, the model was verified by comparing the computational and experimental results of a model scaled ...

Oct. 23, 2017

By IWA Publishing

Stormwater retention basin efficiency regarding micropollutant loads and ecotoxicity

Retention basin efficiency in micropollutant removal has not been very well studied, in particular for pollutants highlighted by the European Water Framework Directive of 2000 such as pesticides, polybrominated diphenyl ethers (PBDEs) and alkylphenols. This study is based on in situ experiments carried out on a stormwater retention basin with the aim of estimating the basin efficiency in ...

Mar. 13, 2014

By IWA Publishing

Energy Savings, Mixing, & Odor Control- Industrial & Municipal Wastewater (ID168) - Wastewater Treatment Plant USCAWW-LOC465.001 - Case Study

Topics: wastewater ,industrial, complete mix, odor control, sludge reduction, energy savings Overview: This wastewater treatment plant (WWTP) consists of two separate treatment avenues for residential and industrial wastewater flows. The industrial waste stream varies seasonally, and comes from food processing wastes from poultry processing, baby food processing, and winery waste. Average ...

Dec. 3, 2019

By Medora Corporation

Determination of reaction rate constants for phenol oxidation using SnO2/Ti anodes coupled with activated carbon adsorption in the presence of TiO2 as catalyst

Series of experiments for phenol degradation with assistance of TiO2 catalyst at pH of 6.5 and temperature of 25°C were conducted using a lab-scale electrochemical reactor constructed in our laboratory. According to the results, at the presence of the TiO2 catalyst the removal of phenol was increased and first-order kinetics could describe the evolution of phenol concentration. For inspecting ...

Jan. 1, 2011

By IWA Publishing

Project - WTP Vresse sur Semois

M-BIOMAX: 500 pe Process: MBR with ZeeWeed membrane, low speed surface aerator AIRMAX and very fine screening 1mm! Effluent: swimming water quality Flow: 13m³/h (rain water) ...

May 7, 2020

By KAMPS s.a.

pH Adjustment - A Primer

A brief review of the definition of pH, the pH scale, and some of the chemistry involved in pH Adjustment systems is provided below. For some this may be trivial, yet for many others this may be useful. The information provided below is typical of the background information we provide in our training classes / seminars. By Definition pH is the measure of free hydrogen activity in water and can ...

Jul. 14, 2010

By Digital Analysis Corp.

Using UV to Disinfect Low Quality Wastewater

This paper discusses the issues involved in sizing ultraviolet (UV) disinfection systems for low quality water, such as those found in poor quality wastewater (primary effluents) or wet weather flows (combined sewer overflows). Discussions of UV reactor dynamics and the merits of bioassay validation are ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Toxkit Technology and New Zealand Water Quality Guidelines

Abstract : The primary objective of this project was to evaluate six Toxkits and the IQ Toxicity TestsTM, for suitability in the role of screening of whole effluents in DTA required by Resource Consents. As an extension, their role as \'up the pipe\' toxicity identification tests were also evaluated. Screening tests must be cost effective (so that regular testing may be performed), easy to use ...

Jan. 8, 2020

By Microbiotests Inc.

Sheraton Club des Pins, Alger case study

Belonging to the famous Sheraton hotel chain, the Club des Pins hotel in Alger, Algeria, has 420 rooms and the best conference center in Algeria. For the wastewater treatment of the hotel and its important business center, the Club des Pins installed in 1998 a BIOTOUR system developed by H2O Innovation. The main function of the BIOTOUR is to trickle the polluted water onto a bacterial bed which ...

Feb. 17, 2012

By H2O Innovation

Comparing the performance of prescribed septic tanks to long, narrow, flooded designs

About 30% of all sewage generated in North America passes through septic tanks, but there is a lack of study to improve these important treatment vessels, and there is no performance-based standard. A survey of existing literature shows that septic tank effluent quality is improved in tanks designed for quiet, laminar fluid-flow and minimum ‘dead space’ such as in longer, narrower tanks. A ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Wastewater Wars: Reuse Projects in Texas

As Texas continues to grapple with an impending deficit of water supplies to meet its future water demands, many water purveyors are looking to their existing resources to meet such needs. Although many water purveyors have already begun planning direct reuse projects, also known as “flange-to-flange” reuse, others have begun to realize the value of wastewater treatment plant discharges. ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Industrial Nordfjord Kjott, Norway case study

Project Name: Nordfjord Kjott R.A. Location: Stryn, Norway Type of Plant: Industrial Meat Processing/Slaughterhouse Technology Used: Biowater CMFF Biofilm system Biomedia Used: Biowater BWT-X Operational Since: Summer 2011 The Challenge Located deep in the mountains of Stryn. the original plant consisted of an inlet pump station & Salsnes filter for pretreatment, fat removal and a Salsnes ...

Aug. 19, 2014

By Biowater Technology AS

An innovative design for an effluent treatment plant case study

A well-known cereal manufacturer has a production plant that produces coated cereals. The production process results in a high level of COD being discharged to the waste stream. For both environmental and economic reasons they needed to reduce the strength of this effluent. Cleveland Biotech Ltd were asked to advise on possible solutions to this effluent problem. A meeting took place in February ...

May 25, 2011

By Cleveland Biotech Ltd.

Design principles to achieve a robust sewage treatment process using rotating biological contactors and reed beds

Severn Trent Water Ltd. has chosen to adopt rotating biological contactors (RBCs) and reed beds amongst other technologies for treating sewage where the population is less than 2000. The design of an RBC to achieve a fully compliant effluent can be difficult when flows are small or the system is combined and an overflow is not permissible. In addition, RBCs have been plagued by mechanical ...

Aug. 29, 2007

By Inderscience Publishers

Project profile - confidential client environmental remediation project Delray Beach, Florida

Background Levine Fricke Engineers (LFE), an environmental firm under contract to Blackstone Consultants LLC (Blackstone), was responsible for specifying and selecting a cleanup remedy for a former contaminated nursery site located in Delray Beach, Florida. LFE and Blackstone performed site characterization and demonstrated that site groundwater contained very high arsenic concentrations. ...

Jul. 2, 2011

By Adedge Water Technologies, LLC

Cocopeat Biofiltration Systems

A cocopeat biofilter system is a low-cost and low-maintenance on-site wastewater treatment solution that is modular in design and applicable for residential, institutional and commercial establishments. The system can be designed to passively treat septic tank effluent to meet secondary treatment levels. For residential use, the biofilter unit consists of a relatively small ...

Nov. 18, 2011

By IWA Publishing