Biological Water Treatment Articles

  • Cartonneries de Gondardennes - Case Study

    Biological treatment in closed circuit improves paper quality Cartonneries de Gondardennes was founded in 1897 and is still a family owned business. The mill in Wardrecques, France, operated for many years at zero discharge. But when paperboard quality was affected by process contamination, it was decided to install biological process water treatment. Paques installed a turnkey treatment ...


    By Paques B.V.

  • Lenzing AG - Case Study

    Viscose fibre producer solves three problems with one solution Lenzing A.G. from Austria is a world leader in viscose fibre production from wood. In 2009 they produced 568,600 tonnes. Their main site is in Lenzing, Austria. The manufacture of viscose fibres from wood produces a range of secondary compounds. Some streams, such as polluted sodium sulphate, cannot be reused and ...


    By Paques B.V.

  • Meihua - Case Study

    Over 90% ammonia removal at food ingredients processing plant Tongliao Meihua Biological Sci-tech Co., Ltd. is a wholly held subsidiary of Hebei Meihua Monosodium Glutamate Group Co., Ltd. Over 18,900 m3/d wastewater with ammonium concentration over 600 mg/l needs to be treated. Probably it is the highest ammonium load in one factory in the world, which means ...


    By Paques B.V.

  • Diageo - Case Study

    Sustainable distillery at Roseisle in Scotland Scotland is one of Diageo’s largest supply centres for Scottish whisky, white spirits and ready to drink brands. The Roseisle distillery in Speyside opened its doors in 2009. The effluent treatment plant included a number of Paques technologies to help reduce CO2 emissions and minimise discharge levels. Paques ...


    By Paques B.V.

  • New Wastewater Treatment Plants for Lagos - Case Study

    Two SBR plants for 6,000 and 36,000 PE are planned by BITControl for the Lagos State Wastewater Management Office. The implementation of the system is accompanied by an intense schooling of the engineers of the LSWMO. Two SBR plants for 6,000 and 36,000 PE are planned by BITControl for the Lagos State Wastewater Management Office. As we have only dry weather systems with a defined amount of ...


    By BITControl GmbH

  • A Return On Investment with Bio-Augmentation

    Henderson, Louisiana is located directly in the center of what is commonly considered ‘Cajun Country.’ Right next door to Breaux Bridge, the town that is known as ‘The Crawfish Capital of the World’; our claim to fame is dealing with the crowds and traffic of that festival every spring. But, Henderson is just fine with that situation, just being the ‘bedroom ...


    By Reliant Water Technologies

  • Could EB irradiation be the simplest solution for removing emerging contaminants from water and wastewater?

    Newly observed presence of ‘emerging contaminants’, defined also Compounds of Emerging Concern, chemicals without regulatory status and which impact on environment and human health are poorly understood has been amply reported in wastewater and aquatic environments. ‘Conventional’ water pollutants have been described for decades and their impact on human health and the environment are known; ...


    By IWA Publishing

  • Chemical stress from Fe salts dosing on biological phosphorus and potassium behavior

    In simultaneous precipitation, interaction between chemical and biological P removal could not be ignored. This work investigated effects of ferrous sulfate and Fe precipitates on metabolic behavior of bio-P and its counter cation of potassium. After dosing, mixed liquid suspended solids (MLSS) increased 9%, pH decreased from 7.35 to 7.00, sludge volume index (SVI) decreased, electrical ...


    By IWA Publishing

  • Effects of phenol on sulfate reduction by mixed microbial culture: kinetics and bio-kinetics analysis

    Mixed microbial culture collected from the wastewater treatment plant of Indian Institute of Technology Guwahati (IITG) was further grown in anaerobic condition in presence of sulfate where lactate was added as a carbon source. Sulfate addition was increased stepwise up to 1,000 mg l−1 before phenol was added at increasing concentrations from 10 mg l−1 to 300 mg l−1. Kinetics ...


    By IWA Publishing

  • Combined yeast and microalgal cultivation in a pilot-scale raceway pond for urban wastewater treatment and potential biodiesel production

    A mixed culture of oleaginous yeast Lipomyces starkeyi and wastewater native microalgae (mostly Scenedesmus sp. and Chlorella sp.) was performed to enhance lipid and biomass production from urban wastewaters. A 400 L raceway pond, operating outdoors, was designed and used for biomass cultivation. Microalgae and yeast were inoculated into the cultivation pond ...


    By IWA Publishing

  • Biodegradation and toxicity of melamine at high activated sludge concentrations in a membrane bioreactor

    Melamine is recalcitrant and toxic to bacteria in conventional activated sludge systems. In this study, we investigated the degradation and toxicity of melamine in a membrane bioreactor (MBR) system operated at high activated sludge concentrations (∼8.5 g TSS/L). Melamine was dosed at 3 mg/L for about 100 days. The average melamine removal efficiency in the MBR system was 20 ± 11%. Meanwhile, ...


    By IWA Publishing

  • Post-treatment of tannery wastewater using pilot scale horizontal subsurface flow constructed wetlands (polishing)

    In the present study, a pilot scale horizontal subsurface flow constructed wetland (CW) system planted with Phragmites karka; longitudinal profile was studied. The wetland was fed with tannery wastewater, pretreated in a two-stage anaerobic digester followed by a sequence batch reactor. Samples from each CW were taken and analyzed using standard methods. The removal efficiency of the CW ...


    By IWA Publishing

  • Flow-through electrosorption process for removal of 2,4-D pesticide from aqueous solutions onto activated carbon cloth fixed-bed electrodes

    Wastewater treatment systems have great importance in dealing with increasing environmental pollution. In this study, a specially designed and constructed flow-through electrochemical cell was used to enhance the electrosorptive removal capacity of 2,4-Dichlorofenoxyacetic acid (2,4-D) pesticide from aqueous solutions onto high area activated carbon cloth (ACC) fixed-bed electrodes. The change ...


    By IWA Publishing

  • Development of in-house lattice-Boltzmann simulator of bioreactors for wastewater treatment: basic concepts and initial results

    While computational modelling has increasingly supported wastewater bioreactor engineering, novel numerical techniques have been developed such as the lattice-Boltzmann method (LBM). With vinasse treatment as case study, this work is a first step towards a comprehensive LBM simulator of a continuous-flow anaerobic packed-bed reactor. Extensions from typical models comprise one-dimensional ...


    By IWA Publishing

  • Removal of crotamiton and its degradation intermediates from secondary effluent using TiO2–zeolite composites

    Crotamiton, a scabicide and antipruritic agent persistent during biological treatment processes, is frequently detected in secondary effluent. In this study, titanium dioxide (TiO2) and high-silica zeolite (HSZ-385) composites were synthesized and applied for the treatment of crotamiton in secondary effluent. Crotamiton was rapidly adsorbed by HSZ-385, and the adsorption performance of ...


    By IWA Publishing

  • Pesticide removal through wastewater and advanced treatment: full-scale sampling and bench-scale testing

    Dieldrin and DDx removal through wastewater treatment, ozonation, and microfiltration was assessed for a water reuse project for groundwater replenishment in Monterey, California, USA. Full-scale sampling was conducted at the wastewater treatment plant, and physical wastewater treatment processes, ozonation, and microfiltration were tested at the bench scale. Removals observed through ...


    By IWA Publishing

  • Reasons You Should Invest in an Arsenic Water Treatment System

    In many areas of the U.S., the element arsenic makes its way into the water supply. This element can have adverse health effects. Although it’s rare that it shows up in large enough concentrations to be fatal, it can still cause problems and should be eliminated. Health Effects Many studies have been done to determine the specific effects of consuming water ...

  • How to Choose the Right Biological Water Filtration System - Case Study

    There are many different biological treatments of water available. They’re all similar in a number of ways, but share key differences in the specific ways the water is filtered. This article is an informative breakdown of all the different biological water treatment systemsthat are available and ...

  • How to Choose the Right Biological Water Filtration System

    There are many different biological treatments of water available. They’re all similar in a number of ways, but share key differences in the specific ways the water is filtered. This article is an informative breakdown of all the different biological water treatment systems that are available and how they ...

  • Treatment performance, nitrous oxide production and microbial community under low-ammonium wastewater in a CANON process

    To investigate the characteristics of anaerobic ammonia oxidation for treating low-ammonium wastewater, a continuous-flow completely autotrophic nitrogen removal over nitrite (CANON) biofilm reactor was studied. At a temperature of 32 ± 1 °C and a pH between 7.5 and 8.2, two operational experiments were performed: the first one fixed the hydraulic retention time (HRT) at 10 h and gradually ...


    By IWA Publishing

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you