biomass testing Articles

  • Anaerobic Biomass Activity Tests

    Anaerobic Biomass Activity Tests The methane production activity of anaerobic sludges is related to the history of the sludge, the biomass yield from the wastewater the sludge has been treating, the fraction of methanogens, and the presence of toxic substances. Best performance can be achieved from an anaerobic treatment plant if the operator measures the Specific Methanogenic Production (SMP) ...


    By Challenge Technology

  • Wastewater Monitoring Series, Part 1: Identifying the Gaps in Conventional Biomass Test Methods in Wastewater

    Biological wastewater treatment systems require living biomass to remove biodegradable contaminants from wastewater.  Effective treatment is directly dependent on the concentration of healthy biomass. It stands to reason that having an easy method to directly measure the quantity and quality of living biomass would be tremendously beneficial to the operation of biological wastewater ...

  • Effects of pH on chromate(VI) adsorption by Spirulina platensis biomass: batch tests and FT-IR studies

    Raw and methylated biomass of Spirulina platensis was employed in chromate batch adsorption tests at pH range 1–7. The acid conditions seemed to favour the removal of chromium (Cr) with a yield of 87.0 and 97.6% by using raw and methylated biomass, respectively. However, the chromate and total chromium determination, carried out in the same sample, evidenced that a fraction of ...


    By IWA Publishing

  • Case study - JJO wood waste – biomass

    A UK leading producer of kitchens and bathroom furniture invest in the future of no costs for the disposal of wood waste and no oil or gas bills for heating of the total company site premises. J J O PLC – manufacturer of Colonial Kitchens, Colonial Bedrooms, eco Kitchens and eco Bathrooms. Founded over 100 years ago and now the leading supplier to many of the best outlets within the ...


    By Mawera (UK) Ltd

  • Availability And Cost of Biomass For Road Fuels in EU

    This workshop was convened by the European Commission's Joint Research Centre, Institute of Energy Studies at Ispra, Italy, in co-operation with CONCAWE and EUCAR, the co-authors of the joint European well-to-wheels study [A3]. The second edition of the well-to-wheels study was released in May 2006 and is available on the JRC web site. This contains detailed evaluations of energy and GHG ...


  • Growth of microalgal biomass on supernatant from biosolid dewatering

    The paper reports the results of an experiment to assess the feasibility of including a photobioreactor within the design of a wastewater treatment plant, growing microalgae on the centrate from anaerobic sludge dewatering. The growth of algal biomass would take advantage of the available nitrogen and provide a substrate for biogas production by anaerobic digestion. Tests were carried out by ...


    By IWA Publishing

  • Algae biomass cultivation in nitrogen rich biogas digestate

    Because microalgae are known for quick biomass growth and nutrient uptake, there has been much interest in their use in research on wastewater treatment methods. While many studies have concentrated on the algal treatment of wastewaters with low to medium ammonium concentrations, there are several liquid waste streams with high ammonium concentrations that microalgae could potentially treat. ...


    By IWA Publishing

  • Influence of temperature on the activity of anammox granular biomass

    The aim of this study was to determine a short-term and long-term effect of temperature on the anammox rate and determination of temperature coefficients in the Arrhenius and Ratkowsky equations. The short-term effects of temperature on the anammox granular biomass were investigated in batch tests at ten different temperatures in the range of 10–55 °C. The maximum overall nitrogen removal rate ...


    By IWA Publishing

  • Effect of phosphorus concentration on phosphorus removal and biomass

    Membrane bioreactor (MBR) process was employed to study the effect of biological phosphorus removal (bio-P removal) and P-content in treated sludge with increased phosphorus concentration present in the wastewater. Further, the following four test fractions of raw wastewaters was obtained having different P-concentrations viz., run 1: P-20 mg/L, run 2: P-40 mg/L, run 3: P-60 mg/L, run 4: P-80 ...


    By IWA Publishing

  • The Standard For Total Biomass Measurement in Metalworking Fluids

    Metalworking fluids provide a warm and nutrient-rich environment for growth of bacteria and fungus.  Once microbial growth is established it can contribute to the breakdown of the metal working fluid emulsion and consequently its ability to lubricate metallic surfaces.  Microbes also lower the fluid's pH, leading to corrosion of tool parts and staining of wetted metal surfaces.  ...


    By LuminUltra Technologies Ltd.

  • Sources of particulate matter: emission profile of biomass burning

    Biomass burning is an important source of atmospheric Particulate Matter (PM) in Brazil: the burning of forests in the northwest and of sugar cane plantations in the southeast are important examples. The objective of this work is the measurement of the PM emission profile of burning of sugar cane and other characteristic vegetative burning in the region of Sao Carlos-SP/Brazil. Samples of PM10 ...


    By Inderscience Publishers

  • Biosorption of Ag+ from aqueous solution by Streptomyces rimosus biomass

    The silver biosorption capacity of a Streptomyces rimosus biomass pretreated with NaOH was studied in the batch mode. Under optimal experimental conditions, a biosorption capacity of 63 mg Ag+ g−1 biomass was obtained. External mass transfer was found to be the controlling step in the overall sorption process. The equilibrium data poorly fitted the Langmuir and Freundlich model isotherms over the ...


    By Inderscience Publishers

  • Sorption of heavy metals in the biomass of alga Palmaria palmata

    Sorption of heavy metals by the sea alga Palmaria palmata was investigated in laboratory conditions. The sorption process of the analytes was carried out with constant flow of the solutions through the algae samples. The Langmuir isotherm model was used to describe equilibria. The experiments confirmed that 50 min of exposure of algae with little heavy metal contamination in contaminated ...


    By IWA Publishing

  • Modeling of an IFAS Process with Fungal Biomass Treating Pharmaceutical Wastewater

    The project involved the dynamic modeling of a wastewater treatment plant (WWTP) treating pharmaceutical wastewater. The WWTP uses an integrated fixed-film activated sludge (IFAS) process with suspended carriers for biological treatment. The plant is unique in that it uses both fungal and bacterial IFAS reactors. The fungal biomass has been shown in laboratory testing to degrade a portion of the ...

  • Anaerobic-aerobic treatment of toxic pulp effluents with biomass, immobilised on LEVAPOR carrier

    1. The problem Effluents of pulp mills using chlorine for pulp bleaching do contain several, under aerobic conditions only weakly degradable (35-45%) toxic chloroorganic pollutants. 2. The solution Preliminary biotretment tests under anaerobic conditions, using specially adapted microorganisms, immobilised on adsorbing, porous LEVAPOR carrier showed a remarkably ...

  • Domestic wastewater treatment with a decentralized, simple technology biomass concentrator reactor

    A new type of membrane-like aerobic reactor initially designed for the degradation of hydrocarbon-derived groundwater contaminants was tested for treating domestic wastewater. The biomass concentrator reactor (BCR) consists of an enclosed, aerated tank containing a graded filtration medium with the function of solids separation, and was previously used to treat industrial wastewaters ...


    By IWA Publishing

  • Quaternised biomass as anion exchanger for the removal of fluoride from water

    Dried Chinese Reed, a fast growing plant, was used as a model biomass for the development of anion exchangers using a quaternisation agent, N-(3-chloro-2-hydroxypropyl) trimethylammonium chloride (CHMAC), for the removal of fluoride from water. Parameters investigated in the adsorption studies include F− concentration, agitation time, adsorbent dose and pH. Equilibrium adsorption data followed ...


    By Inderscience Publishers

  • Kinetics of heterotrophic biomass and storage mechanism in wetland cores measured by respirometry

    Although oxygen uptake rate has been widely used in activated sludge for measuring kinetic and stoichiometric parameters or for wastewater characterization, its application in constructed wetlands (CWs) cores has been recently proposed. The aim of this research is to estimate the kinetic and stoichiometric parameters of the heterotrophic biomass in CW cores. Respirometric tests were carried out ...


    By IWA Publishing

  • Mathematical models for biomass in membrane-BNR process for wastewater treatment

    The equation of biomass is related to the mass-balance equation of substrate. This equation of substrate is expressed according to a model using the Monod equation, which indicates some limits for calculating the amounts of VSS in the MBR process. Some degradation of biomass which is caused by long SRT might result in the generation of substrate based on COD. Research was conducted by lab-scale ...


    By IWA Publishing

  • Lotus seedpod as a low-cost biomass for potential methylene blue adsorption

    The adsorption of methylene blue (MB) by low cost biomass lotus seedpod (LSP) was optimized by a central composite design combined with response surface methodology in aqueous solution. Solution pH, initial dye concentration and adsorbent dosage were studied as independent variables at five levels each, respectively. Analysis of variance suggested the validity of the regression model. LSP was ...


    By IWA Publishing

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