On-site Wastewater Articles

  • BLOOM Craft Brewery - Case Study

    BLOOM has released a new pilot project case study to improve water management performance in Ontario’s craft breweries:  ...


    By MANTECH

  • Find the right wastewater solution for your leisure centre, factory or office civils project

    Designing an off-mains drainage solution for a commercial facility such as a leisure centre, factory, or an office, should never be considered a simple job. It requires qualified and expert guidance to ensure compliance with the stringent legal requirements which must be observed. Kingspan Klargester has been providing customers with support, at all stages of project planning, designing, ...


    By Kingspan Environmental Ltd

  • NFPA 820 Compliance in Wastewater Treatment Plants

    Wastewater treatment plants are essential structures in cities and small communities. Such facilities are closely monitored by several professional institutions, such as OSHA and the NFPA. When it comes to the latter group, guidelines set forth in NFPA 820 are regulations that dictate fire hazards in such facilities. Fire related accidents in wastewater treatment facilities are uncommon. However, ...


    By Larson Electronics LLC

  • Rhode Island Wastewater Plants Key To Water Quality Reversal

    Despite evidence that often points to the contrary, many bodies of water around the country stand as prime examples of how environmental quality can be improved with the proper will and effort. Take, for instance, Narragansett Bay, located on the north side of the Rhode Island Sound. Located near some of America’s oldest settlements, the bay has ...


    By KLa Systems, Inc.

  • Good Preparation and Planning Reduces Wastewater Headaches Associated with Production Outages

    Author’s note: The terms mill and plant are used interchangeably in this article to describe an industrial manufacturing unit, such as a Pulp & Paper Mill, Petroleum Refinery, Chemical Processing Plant, Meat & Poultry Processing, etc. Plant (or mill) outages come in two types – scheduled and unplanned. Scheduled outages are generally annual affairs at roughly the same ...

  • Gaussian process regression for monitoring and fault detection of wastewater treatment processes

    Monitoring and fault detection methods are increasingly important to achieve a robust and resource efficient operation of wastewater treatment plants (WWTPs). The purpose of this paper was to evaluate a promising machine learning method, Gaussian process regression (GPR), for WWTP monitoring applications. We evaluated GPR at two WWTP monitoring problems: estimate missing data in a flow rate ...


    By IWA Publishing

  • Wastewater and groundwater

    Nearly 25 percent of the population in the United States—in more than 25 million homes—disposes of wastewater through onsite, or unsewered, systems that return treated effluent to the ground. This is an important public health issue because many of those same homes use wells that rely on groundwater for the drinking water supply. With ...

  • Survey on number and size distribution of treatment wetlands in Austria

    In Austria, 1,840 wastewater treatment plants (WWTPs) with design size >50 population equivalent (PE) serve about 95% of the population. The remaining 5% of the population live in single houses and small settlements that require on site and decentralized wastewater treatment technologies. There is no common database on small WWTPs with design size <50 PE; thus data had to be collected ...


    By IWA Publishing

  • Impacts of onsite greywater reuse on wastewater systems

    Together with significant water savings that onsite greywater reuse (GWR) may provide, it may also affect the performance of urban sewer systems and wastewater treatment plants (WWTPs). In order to examine these effects, an integrated stochastic simulation system for GWR in urban areas was developed. The model includes stochastic generators of domestic wastewater streams and gross solids ...


    By IWA Publishing

  • Sustainability of decentralized wastewater treatment technologies

    In many Countries, small communities are required to treat wastewater discharges to increasing standards of lesser environmental impacts, but must achieve that goal at locally sustainable costs. While biological membrane treatment (membrane bio-reactors (MBRs)) is quickly becoming the industry standard for centralized wastewater treatment plants, and would also be ideally suited also for small ...


    By IWA Publishing

  • Steps towards implementing decentralized rural sanitation solutions: an institutional assessment of the Brazilian sanitation sector

    In spite of a great number of environmental laws and a sound legal framework for the water and sanitation sector, there are numerous obstacles, which impede the successful implementation of Brazilian sanitation policies. This study undertakes an institutional assessment of decentralized wastewater treatment solutions, applicable in rural areas in the state of Rio de Janeiro in order to ...


    By IWA Publishing

  • Start-up of a decentralized pilot plant for the anaerobic treatment of domestic wastewater

    This paper is about the set-up and start-up of a decentralized anaerobic pilot plant for producing domestic service water from domestic wastewater. The plant consists of a two-stage anaerobic digestion process for degrading organic matter and a third-stage for ammonium removal using the Anammox process. Each reactor was started independently with synthetic wastewater of stage-specific ...


    By IWA Publishing

  • Investigating the interactions of decentralized and centralized wastewater heat recovery systems

    In the urban water cycle there are different sources for extracting energy. In addition to potential and chemical energy in the wastewater, thermal energy can also be recovered. Heat can be recovered from the wastewater with heat exchangers that are located decentralized and/or centralized at several locations throughout the system. It can be recovered directly at the source (e.g. in the ...


    By IWA Publishing

  • Investigating the impacts of extraneous water on wastewater treatment plants

    To demonstrate the effects of increased extraneous water on operation, purification, and energy efficiency, two wastewater treatment plants (WWTPs) have been investigated in detail under the research project ‘Sealing of sewer pipes – Effects on the purification performance of WWTPs and their impact on the local water balance’. Both treatment plants, after evaluating and analyzing the ...


    By IWA Publishing

  • Countering Wastewater Odor Complaints on a Localized Level

    In countless counties and towns throughout the U.S., there are ongoing new stories about wastewater treatment odors negatively impacting nearby residents and businesses. From Sioux City, Iowa to  ...


    By OMI Industries (OMI)

  • Another MRO company goes wastewater-free!

    Jet Aviation in Basel, Switzerland, is using a VACUDEST vacuum distillation system to efficiently and sustainably treat wastewater left over from refurbishing aircraft parts. This state-of-the-art system replaced outdated chemical/physical treatment at the company. Jet Aviation is particularly pleased with the high quality of the treated water, which can even be reused in maintenance processes. ...


    By H2O GmbH

  • Assessing the population dynamics of Escherichia coli in a metropolitan river after an extreme flood event

    We investigated Escherichia coli populations in a metropolitan river after an extreme flood event. Between nine and 15 of the 23 selected sites along the river were sampled fortnightly over three rounds. In all, 307 E. coli were typed using the PhP typing method and were grouped into common (C) or single (S) biochemical phenotypes (BPTs). A representative from each of the 31 ...


    By IWA Publishing

  • Updating national standards for drinking-water: a Philippine experience

    The latest version of the Philippine National Standards for Drinking-Water (PNSDW) was issued in 2007 by the Department of Health (DOH). Due to several issues and concerns, the DOH decided to make an update which is relevant and necessary to meet the needs of the stakeholders. As an output, the water quality parameters are now categorized into mandatory, primary, and secondary. The ten ...


    By IWA Publishing

  • Do storm event samples bias the comparison between sewer deposits contribution?

    Previous researches demonstrated the occurrence of unique in-sewer sediment, the organic layer, on the Marais site in Paris, capable of explaining the entire wet weather sewer production of suspended particles. Other studies on sites having no similar organic sediment, Clichy in Paris and Ecully in Lyon, demonstrated a wet weather sewer deposits contribution (SDC) to effluent pollution ...


    By IWA Publishing

  • Decentralized wastewater treatment using a bioelectrochemical system to produce methane and electricity

    Biological electrochemical systems (BESs) have the potential for decentralized treatment in developing countries. A 46 L, two-chamber, hydraulically partitioned microbial fuel cell (MFC) was designed to replicate low-flow scenarios leaving a composting toilet. The co-evolution of electricity and methane in this MFC was evaluated by testing two distinct waste streams: synthetic feces (Case F) ...


    By IWA Publishing

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