wwtp operator Articles

  • The Effects of Bioaugmentation in Collection System on WWTP Operations

    In 2004 the wastewater treatment plant in the Town of Orange Park had a very unique problem. The Town was in violation of the current Water Quality Based Effluent Limits (WQBEL) permit while they were simultaneously planning for the even more stringent, Basin Management Action Plan (BMAP) permit to take effect in 2008. The Town needed to address both long and short term wastewater treatment ...

  • Newport WWTP Newport, WA

    In 2003 the city of Newport began a study of upgrading the city’s waste water treatment plant. Plant flows were increasing and the city wanted to process sewage from septage haulers handling recreational development in the area. Esvelt Environmental Engineering Company was selected to do the study and facility design. One of the first decisions made was rather than expand aeration basins, ...


    By BDP Industries

  • WWTP Industrial Coating Sector

    The pre-treatment operations prior to coating are the core of the fi nishing process of metal and plastic products: The end quality of any type of coating can precisely depend on a proper pre-treatment. Two types of pre-treatment are carried out in the metal coating processes: Chemical and mechanical. For the second type, dry technologies are used, such as shot blasting, sand blasting and so on, ...


    By SIMPEC S.r.l.

  • Case study: Municipal WWTP

    OverviewThe municipal WWTP at Monclova, Mexico had to increase its capacity by a factor of 1.5 and improve nitrification capacity, for 100% reuse by industry.  RequirementsThe city of Monclova operates a modern wastewater treatment plant which receives urban and industrial wastewater. A retrofit for an increase of 50% in capacity was required, as well as improvement in ...

  • Case study: Municipal WWTP

    OverviewAn urgent improvement of the effluent quality of the old existing WWTP of Yavne was required by the Environmental Ministry of Israel. RequirementEffluent from the Yavne WWTP used to be discharged into a river which flows into the Mediterranean Sea. Years of inadequate treatment in two extensive ponds caused severe pollution. As a result, the Environmental ...

  • Aerator solution for WWTP

    IN 1990, CIRCUIT ENGINEERING began importing the Aire-02 Triton Aerators from the United States. With over 60 000 installations of the Air-02 Aerators currently in operation worldwide, Aeration Industries is one of the world's leading aerator companies. This month. Water&Sanitation Africa spoke to Ryan Beswick, director of Circuit Environmental Engineering, to find out more about these ...

  • Biofiltration WWTP 50.000 PE

    The aerated upflow biological filtration (biofiltration) is a technology which is today successfully used in more than 500 European wastewater treatment plants. Among this, the one of Sallek Valley, in Slovenia, differs by a two stage biofiltration and a part-recirculation of sludge from thickener to increase the COD concentration needed for denitrification. This process allows an advanced ...


    By AquaBiotec

  • FF System - Compact WWTP

    Our “FF System” is the perfect solution created by our engineers to guarantee a flexible and long lasting treatment unit which is ready use due to the fact that it is completely pre-assembled. This compact system includes all the required unit operations such as screening, dissolved air flotation, biological oxidation, sedimentation and UV disinfection. This is the best available ...


    By Panta Rei Srl

  • Biofiltration WWTP Sallek Valley

    WWTP Sallek Valley:advanced waste water treatment with upflow biofiltration. The aerated upflow biological filtration (biofiltration) is a technology which is today successfully used in more than 500 European wastewater treatment plants. Among this, the one of Sallek Valley, in Slovenia, differs by a two stage biofiltration and a part-recirculation of ...


    By Water Experts Germany

  • Energy Optimisation by Determination of Critical Oxygen Point in WWTP Operations

    The control of dissolved oxygen levels in Waste Water Treatment plants has been the subject of considerable technological improvement over the past 2 decades. Typically the energy required for aeration purposes in aerobic activated sludge plants is in the region of 35% to 65% of the total energy costs for the facility. On a global basis energy conservation is taking on greater and greater ...

  • Municipal WWTP, Spain: A Case Study

    Overview The oxidation ditch configuration based wastewater treatment plant in Spain required a quick upgrade in order to comply with new inflow and quality requirements. Requirements The existing plant was operating with two parallel Oxidation Ditch modules with a flow rate of 600 m³/d each, and exhibited very poor nitrification capacity. The plant was to be ...

  • WWTP Monclova, Mexico A Case Study

    Case Study: Municipal WWTPClient: Monclova – MexicoStart Up: 2005Capacity: 58,300 m3/d Overview The municipal WWTP at Monclova, Mexico had to increase its capacity by a factor of 1.5 and improve nitrification capacity, for 100% reuse by industry. Requirements The city of Monclova operates a modern wastewater treatment plant ...

  • Handeland wwtp - Norway case study

    Background The area of Oevre Sirdal is a rural area, characterized by a small residential population and a great seasonal tourist activity. New hotels and cabins are built, and the municipality expects an intensive growth in the tourist sector in the coming years. In order to meet the challenge from this extensive development, the municipality chose to build a new treatment plant for the whole ...

  • WWTP Georgia, USA - A Case Study

    Case Study: Municipal WWTPClient: Georgia – USAStart Up: 2009Capacity: 1,900 m3/d Overview The extensive municipal WWTP was required to upgrade its effluent quality to include extensive Ammonia removal. The project was conducted by Aqwise’s partner in North America, Siemens Water Technologies Corp. ...

  • WWTP Yavne, Israel A Case Study

    Case Study: Municipal WWTPClient: Municipality of Yavne, IsraelStart Up: September 2005Capacity: 6,000 m3/d Overview An urgent improvement of the effluent quality of the old existing WWTP of Yavne was required by the Environmental Ministry of Israel. Requirement Effluent from the Yavne WWTP used to be discharged into a river ...

  • Mixers and Flowmakers: Flowmakers at the Rugby WWTP, UK

    We have installed 8 flowmakers, type POPL-I, in the aeration tank at the municipal wastewater treatment plant in Rugby Newbold. The flowmakers create the specified velocity in the tanks which are equipped with bottom aeration. At the same time the sludge is homogenized and sedimentation is prevented. The units have operated continuously since 1999. Landia supplied mixers to the sludge tanks in ...


    By Landia

  • Dynamic Simulation of Volatile Compound Transient Events at WWTPS

    ABSTRACTTransient or intermittent releases of specific volatile or semi-volatile organic compounds are not managed well by existing predictive fate models such as TOXCHEM+ or Water9 because they are based on steady-state conditions. In this paper, two scenarios for treatment of transient organic compound concentrations are studied using dynamic simulation: ...

  • Mixers and Flowmakers: Flowmakers at the Voreppe WWTP, France

    We have installed 8 flowmakers, type POPL-I, in aeration tanks with bottom aeration – each tank is 9,000 m³. The flowmakers create the specified average velocity of 0.3 m/sec. The sludge is homogenized and sedimentation is prevented. The plant has been in operation since 1994. The units have a total operating time of more than 80,000 ...


    By Landia

  • Experiences on dual media filtration of WWTP effluent

    This research is legislation driven by the European Water Framework Directive (WFD) and the Dutch Fourth Memorandum on Water Management. The objective of this research is to achieve the removal of total nitrogen and total phosphorus by Dual Media Filtration. The target value during this research for total nitrogen is 2.2 mg/L and for total phosphorus 0.15 mg/L. The results show that for NOx-N ...


    By IWA Publishing

  • Mixers and Flowmakers: Flowmakers at the Lynetten WWTP, Copenhagen

    In 1995 Landia installed 95 flowmakers, type POPL-I, in the aeration tanks at the Lynetten Wastewater Treatment Plant in Copenhagen. The wastewater treatment plants Lynetten and Damhusåen to which Landia also supplied mixers treat a total of 75-100 mio m³ wastewater a year - approx. 1.1 mio. person equivalents. The Lynetten WWTP is the largest wastewater treatment plant in Denmark. The client ...


    By Landia

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