settlement tank Articles

  • Technical Focus: Turbidity as Control for Primary Settlement

    Turbidity is a very useful tool when regarding control within the primary settlement stage of water treatment. By utilising turbidity as a control variable during this stage of the process you  can enable a more rapid response to variations in load  and provide early warning  to operators of equipment malfunction before it’s too late; allowing for immediate action to be taken ...


    By Partech (Electronics) Ltd.

  • Constructed wetland as a low cost and sustainable solution for wastewater treatment adapted to rural settlements: the Chorfech wastewater treatment pilot plant

    The paper presents the detailed design and some preliminary results obtained from a study regarding a wastewater treatment pilot plant (WWTPP), serving as a multistage constructed wetland (CW) located at the rural settlement of ‘Chorfech 24’ (Tunisia). The WWTPP implemented at Chorfech 24 is mainly designed as a demonstration of sustainable water management solutions (low-cost wastewater ...


    By IWA Publishing

  • Our Conical Cone Tanks Are Now WRAS Approved For Drinking Water Storage

    When it comes to quality, Enduramaxx is there. And our cone tanks (conical tanks) are no exception. We are proud to announce that they have just been granted WRAS certification. The Water Regulation Authority Scheme approval means that these tanks are approved for the storage of emergency water for human consumption. This means our cone bottom tanks can be used for applications for storage of ...


    By ENDURAMAXX

  • Rainwater tanks in modern cities: a review of current practices and research

    Rainwater tanks often provide a reliable and affordable water supply source in rural and remote areas where piped water supply systems are unfeasible due to economic considerations. However, over recent decades there has been an increase in the adoption of rainwater harvesting as part of the water supply source mix in modern cities. The uptake of rainwater harvesting has been influenced by the ...


    By IWA Publishing

  • Dairy Products

    Problem: This dairy located in Northern California is a major supplier of consumer milk products. The plant had been discharging their wastewater to the local sanitation plant untreated. Due to industrial growth in the area, the sanitation plant could no longer accept the dairy effluent. The dairy, therefore, selected and installed a Sequential Batch Reactor (SBR) system to treat their ...


    By HydroCal Inc.

  • Spilled heavy grade heating oil case study

    Heavy fuel oil escaped from a storage tank and entered the drainage system of a large creamery. This material passed to the aerated balance tank which precedes an activated sludge system treating the factory waste waters. Alerted to the spillage the operators were able to shut off the flow to the activated sludge system but not before a significant quantity of oil had passed through. Bio-Systems ...


    By Bio Systems Europe

  • Maintenance and Servicing

    The BIOROCK waste water treatment plant requires an unexpensive servicing in order to maintain its performance year after year, like all sewage treatment plants but our main difference with most electric plant which need servicing every 6 months is that the BIOROCK service is performed only annually. This maintenance should be performed by a trained BIOROCK company. The service includes a sludge ...


    By BIOROCK S.à.r.l

  • Temporary treatment systems for large construction site in Stratford, East London

    Filter refurbishment program for 2000 site workers/staff Site Contractor: Natta Building Company Peak flow to treatment: 10.5l/s Designed consent standard: 20 mg/l BOD, 30 mg/l TSS & 10 mg/l NH4 Maximum incoming BOD: 380 mg/l Maximum incoming NH4: 50 mg/l Units supplied: 4 off 300pe GRP units 1 off 750pe steel unit 2 off HB50 Lamella settling tanks (primary and ...


    By WPL Ltd

  • Austrian municipal sewage plant

    The sewage work of the borough Deutsch-Wagram is situated in the south west of the settlement on the left shore of the Ru§bach and is in operation since 1969. The drainage area is 350 hectare and the degradation performance is more than 90%. All accumulated waste water is cleaned by mechanical, chemical and biological treatment. At the moment only one activated sludge tank is used, the second one ...


    By BluePlanet Labs

  • A combined hydraulic and biological SBR model

    A sequencing batch reactor (SBR) model was developed consisting of six continuous stirred tank reactors which describe the hydraulic flow patterns occurring in different SBR phases. The model was developed using the results of computational fluid dynamics (CFD) simulation studies of an SBR reactor under a selection of dynamic operational phases. Based on the CFD results, the model structure was ...


    By IWA Publishing

  • Temporary treatment systems for large construction site in Stratford, East London case study

    Posted March 2009 by WPL Limited Filter refurbishment program for 2000 site workers/staff Site Contractor: Natta Building Company Peak flow to treatment: 10.5l/s Designed consent standard: 20 mg/l BOD, 30 mg/l TSS & 10 mg/l NH4 Maximum incoming BOD: 380 mg/l Maximum incoming NH4: 50 mg/l Units supplied: 4 off 300pe GRP ...


    By WPL Ltd

  • Temporary sewage treatment plant for Scottish water at Glenluce

    WPL have a range of portable sewage treatment solutions that can be utilised to replace or augment existing sewage treatment plant. The plant range can be hired or purchased. WPL have considered each stage of the sewage treatment process within their portable range. Primary, secondary and tertiary options are available to meet stringent consent conditions. Background In ...


    By WPL Ltd

  • Controlling Sludge in Lamella Clarifiers

    This month we are focusing on the control of sludge blanket build up in Lamella Clarifiers. Lamella Clarifiers, also known as Inclined Plate Separators (IPS) are in common use at Waste Water Treatment Sites as small footprint plant settlement units and are often employed in ...


    By Partech (Electronics) Ltd.

  • Wastewater Solutions for a hospital in Libya case study

    Continuing the trend of significant growth in Libya for WPL Ltd and El Zulal, the most recent development has been to provide wastewater treatment solutions for a hospital near Ubari. These facilities were provided as part of a co-operation project between El Zulal and the Libyan Government. El Zulal are the local expert distributors and installers for WPL's ...


    By WPL Ltd

  • High efficient and economic waste water treatment using Standardized Biological Aerated Filtration sBAF (Biofiltration)

    Biological Aerated Filtration (BAF) is a technology which is today successfully used in more than 500 European wastewater treatment plants. Biofiltration is a compact and modular aerated biological reactor which has several advantages compared with classic technologies like activated sludge with its suspended growth. The main advantages of using biofilters with fixed film biomass are the ...


    By Water Experts Germany

  • Abattoir, commissioning of activated sludge plant case study

    This abattoir’s ancient activated sludge system needed complete refurbishment requiring the aeration tank to be drained. A characteristic of the waste water is its consistently very high ammonia concentration. The activated sludge system has to achieve a final effluent of 20 mg/l BOD, 10 mg/l ammonia and 30 mg/l suspended solids. The authorities required that this standard be ...


    By Bio Systems Europe

  • Venting your Sewage Treatment System

    The venting for the BIOROCK Sewage Treatment System is probably the key point of the system. The venting is specific to your site; again, why we emphasize the service of a certified recommended installer to install the BIOROCK Sewage Treatment Plant correctly. BIOROCK Venting Guidelines However, there are some simple tricks to follow in order that the continuous draft of air necessary to ...


    By BIOROCK S.à.r.l

  • Temporary Sewage Treatment Plant for Scottish Water at Glenluce case study

    WPL have a range of portable sewage treatment solutions that can be utilised to replace or augment existing sewage treatment plant. The plant range can be hired or purchased. WPL have considered each stage of the sewage treatment process within their portable range. Primary, secondary and tertiary options are available to meet stringent consent ...


    By WPL Ltd

  • Sewage Treatment - Klargester is the market leader for small and medium-sized domestic treatment plant and waste water treatment systems in the UK

    Sewage treatment plant operate by providing an environment in which aerobic bacteria are cultured. These bacteria survive by using biological matter in the sewage as a food source. To provide optimum treatment the bacteria need free access to oxygen and immersion in the sewage effluent. The majority of package plant work by providing a fixed medium that the bacteria adhere to, and a means of ...


    By Kingspan Environmental Ltd

  • Sequencing batch reactor

    Sequencing batch reactors (SBR) sequential batch reactors are industrial processing tanks for the treatment of wastewater. SBR reactors treat waste water such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the waste water to reduce biochemical oxygen demand (BOD) and chemical oxygen demand (COD) to make suitable for ...


    By IWA Publishing

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