Farm Effluent Articles

  • EDTA in environments subjected to disposal of dairy effluent from processing plants

    The presence of Ethylenediaminetetraacetic acid (EDTA) in environments related to the disposal of dairy effluent has been investigated. An HPLC–UV analytical method was used to determine concentrations of EDTA in soil, surface and ground waters. Method detection limits were 1.5 mg/kg (dry weight) for soil, 1 μg/L for surface water and 2 μg/L for groundwater. A quasi one–dimensional vertical ...


    By Inderscience Publishers

  • Cultivation of microalgae (Oscillatoria okeni and Chlorella vulgaris) using tilapia-pond effluent and a comparison of their biomass removal efficiency

    The uptake of dissolved nutrients by microalgae is the primary way to remove nitrogen in aquaculture systems. Many authors have studied the use of microalgae to treat wastewater from aquaculture. However, excessive microalgae accumulation may cause high levels of organic matter and suspended solids in the final effluent. Thus, an efficient way to remove excess algae is needed in wastewater ...


    By IWA Publishing

  • EDTA in dairy wastewater and removal efficiency - a case study

    EDTA is the most widely used chelating agent for removal of undesirable cations in many industrial applications such as the dairy industry. It is generally considered to be non–biodegradable by conventional wastewater treatment, thereby potentially producing an environmental health risk. Under suitable conditions, however, EDTA has been reported to be effectively degraded by micro organisms ...


    By Inderscience Publishers

  • New Mexico Business Weekly Passing biogas: R-Qubed project converts cow manure to methane

    Some locals sarcastically joke that the stretch of dairy farms along Interstate 10 south of Las Cruces should be re-named “Buenos Aires” (fresh air). It’s a reference to a less than aromatic sector of I-10 in southern New Mexico, not a reflection on the capital of Argentina. But that soon might change, thanks to a US$72 million plan by R-Qubed Energy Inc. of El Paso to build ...


    By entec biopower gmbh

  • Brazilian Dairy with Space Constraints

    Case Study of a Brazilian Dairy - Space Constraints The Challenge:  The customer is a producer of dairy products including:  milk, cheese, sour cream, butter and yogurt.  In Sao Paulo City as in many large cities, the industries have to pay to discharge to the municipal wastewater system.  The dairy was no exception.  The immediate challenges they were facing were scaling ...


    By Biowater Technology

  • Dairy Installation

    The customer is a producer of dairy products including: milk, cheese, sour cream, butter and yogurt. In Sao Paulo City as in many large cities, the industries have to pay to discharge to the municipal wastewater system. This dairy was no exception. The immediate challenges they were facing were scaling issues ...


    By Biowater Technology

  • Treatment of farm dairy effluent with hybrid upflow multilayer bioreactor and activated sludge module

    Biological removal of nitrogen and carbon from farm dairy effluent (FDE) was studied with two laboratory-scale systems following nitrification and denitrification processes. Each system consisted of an upflow multilayer bioreactor (UMBR) as a pre-denitrification unit, an aeration tank (AT) as nitrification unit and a secondary clarifier. The optimization of two operational variables, total ...


    By IWA Publishing

  • Antibiotic resistant bacterial profiles of anaerobic swine lagoon effluent

    Received for publication November 3, 2008. Although land application of swine (Sus scrofa) manure lagoon effluent is a common and effective method of disposal, the presence of antibiotic-resistant bacteria, both pathogenic and commensal can complicate already understood issues associated with its safe disposal. The aim of this study was to assess antibiotic resistance in swine lagoon bacteria ...

  • Citrus Juice Processor

    A large citrus juice processor was using conventional chemistry (alum as the coagulant and a cationic flocculant) to treat their wastewater. The pH has wide swings from a low of 3.0 during processing to a high of 11.5 from their sanitizing steps. Their effluent quality varied due to the pH swings and the limitation of the performance of the chemistry. A comparison of the water is shown below ...


    By Integrated Engineers Inc.

  • Recovery of Salmonella from Bermudagrass exposed to simulated wastewater

    Most confined swine (Sus scrofa) feeding operations in the southeastern United States hold manure in lagoons and apply effluent on bermudagrass [Cynodon dactylon (L.) Pers.] as fertilizer. Salmonella enterica subsp. enterica (ex Kauffman and Edwards) Le Minor and Popoff, has been reported in Mississippi lagoons, but levels and potential for contamination of bermudagrass were unknown. A laboratory ...

  • Asian dairy churns out grade AA effluent

    ' The AIRE-O2® aerators have excellent oxygen transfer, easy maintenance and operation.' Problem Founded in 1937, this dairy cooperative located in Asia has played a leading role in the development of the industry in its country. Its mission is to 'supply quality products for safe-guarding the nation’s health' in all its product line. The same attention to quality standards that drives ...

  • Towards strategies for pollution control on the use of wastewater effluent in sustainable agriculture in the Gaza Strip

    The agriculture sector is a major consumer of groundwater in the Gaza Strip, where the level of groundwater, the main water resource, is being depleted and its quality is adversely affected. Wastewater reuse is identified to solve the water shortage problem in the Gaza Strip in the National Water Policy. However, treated effluent has been successfully applied in many countries, though it should ...


    By Inderscience Publishers

  • Aquaculture Facilities As A Potential Source Of Antibiotic Resistance To The Aquatic Environment

    The development and proliferation of antibiotic resistance in pathogenic, commensal, and environmental microorganisms is a major public health concern. The extent to which human activities contribute to the maintenance of environmental reservoirs of antibiotic resistance is poorly understood. Aquaculture facilities are one possible source of resistance to the environment because of their ...

  • A Study on Assessment on Pollution Load from Dairy Effluent

    ABSTRACTBiodegradation is increasingly being considered as a less expensive alternative to physical and chemical means of decomposing organic pollutants. Pathways of biodegradation have been characterized for a number of microorganisms, some of which have been used for remediation of water. Because algae are photoautotrophic their use for bioremediation of surface waters would circumvent the ...


  • Microbiologically influenced corrosion in dairy effluent

    Abstract: In the dairy industry mild steel is used as the construction material for the effluent treatment plants, pipelines, reinforcement in concrete structures etc. The steel exposed to the dairy effluent faces corrosion due to the microbes. In the present study the role of microbes in dairy effluent on the corrosion of mild steel has been investigated. Pseudomonas sp., Streptococcus sp., ...

  • Anaerobic Digestion at Dairy Farms

    The need to upgrade dairy waste management practices to overcome pollution problems is leading more farmers to seek solutions with anaerobic digestion technology. Two recent examples of this trend are underway at California sites. The Cal Poly Dairy is located adjacent to the California Polytechnic State University campus in San Luis Obispo. The dairy milks 180 cows with a total population of ...


    By BioCycle Magazine

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