Animal Waste Articles

  • Pork Slaughterhouse - Case Study

    Introduction Prior to the installation of two 1,200 gpm GEM (Gas Energy Mixing) Systems, CWT’s Client discharged approximately 1.9 million gallons per day (mgd) to their onsite pretreatment plant consisting of an Infilco Dissolved Air Flotation (DAF) unit service with a Nikuni pump, and a Maxair Clarifier (DAF) for further removal of contaminants. Float from both units was heated and ...


    By Clean Water Technology, Inc.

  • Biobased Economy opportunities for North-Netherlands

    The three Northern provinces of the Netherlands could join forces to become a major producer and supplier of renewable resources for the regional production of ‘green’ chemicals, plastics and animal feed. This is one of the conclusions from research carried out by Wageningen University & Research, Greenlincs and the University of Groningen. Close collaboration with the German ...

  • Performance of airlift MBR for on-site treatment of slaughterhouse wastewater in urban areas of Vietnam

    In many cities in Vietnam, wastewater generated in slaughterhouses is normally discharged directly into surface waters without treatment. Management of slaughterhouse wastewater (SHWW) is difficult due to the lack of infrastructure for conveyance to centralized facilities. On-site treatment presents one cost-effective way of managing SHWW compared to mass improvement of infrastructure. This ...


    By IWA Publishing

  • Chicken Manure Management, Recycling, and Composting

    Chicken Manure Fertilizer Manufacturing Process If you have chickens, you will have manure. Fortunately, chicken manure is among the most prized of manures. Fresh chicken manure is considered a “hot” manure, which is unsuitable for immediate use. Chicken manure needs to be composted and aged at least two to three months before you add it to your garden. If you don’t wait ...

  • The potential of ultrasonic membrane anaerobic systems in treating slaughterhouse wastewater

    Direct discharge of slaughterhouse wastewater causes serious environmental pollution due to its high chemical oxygen demand (COD), total suspended solids (TSS) and biochemical oxygen demand. In this study, an ultrasonic-assisted membrane anaerobic system was used as a novel method for treating slaughterhouse wastewater. Six steady states were achieved, using concentrations of 7,800–13,620 mg/l ...


    By IWA Publishing

  • Maryland’s New Composting Regulations

    After a year of comments and revisions, the Maryland Department of Environment (MDE) is scheduled to publish its new rules for permitting composting facilities this month (December) in the Maryland Register for a final 30-day comment period. Initially proposed last January, the slightly revised composting regulations are expected to take effect in early 2015, unless further changes are required. ...


    By BioCycle Magazine

  • CAFO Manure Treatment-Struvite Removal and Struvite Prevention

    CAFOs (Confined Animal Feeding Operations) face struvite in their manure holding ponds and manure lagoons, as well as their recirculation systems. On a dairy farm in Neb. that operated with 15,000 milking cows, they were generating 500,000 gal per day of wastewater laden with manure.  Over the summer, they noticed a reduction in their pumping capacity because the first lagoon was ...


    By Struvite Removal

  • Slaughterhouse carcass waste composting case study

    Slaughterhouse waste was treated with BactiDomus Technology compost accelerator to monitor the effects of the treatment against untreated waste. The goal of the project is to increase the efficiency of the composting process to reduce the total time needed to turn the waste into compost. Two separate bins of waste were treated with BactiDomus Technology compost accelerator, the first on August ...


    By Nordevco Associates Ltd.

  • Variations in lethal and sublethal effects of cypermethrin among aquatic stages and species of anuran amphibians

    Unpredicted variation in levels of risk to organisms to xenobiotics can be observed, despite the use model species to predict the effects of chemicals in the environment. Physiological and morphological differences between species and life stages may lead to differences in sensitivity, while seasonal and spatial variation in pesticide concentrations may affect the level of risk faced by ...


    By John Wiley & Sons, Ltd.

  • Influence of some biological wastes and their combination on growth and reproduction potential of earthworm, Eisenia fetida and their effect on plant growth

    Effect on growth and reproduction potential of animal wastes viz., cow, goat, horse and a domestic waste (used tea dust) and their combinations to the earthworm, Eisenia fetida, was studied under laboratory conditions. The effect of above on growth aspects of Bhendi crop was compared with the normal compost individually under green house conditions. The effects on growth were assessed for ten ...


    By Inderscience Publishers

  • Beef Slaughterhouse

    Problem: A beef slaughterhouse in Idaho wanted to compare performance and efficiency between their existing DAF unit and the HydroCal CAF flotation unit. Solution The Hydrocal CAF ran continuously for 8-10 hours per day. Test runs were made with and without polymer and samples were collected over a wide range of feed conditions. ...


    By HydroCal Inc.

  • Application of rural slaughterhouse waste as an organic fertilizer for pot cultivation of solanaceous vegetables in India

    Background:The lack of electricity and water supply in rural abattoirs in developing nations prevents the adoption of waste-processing technologies practiced in economically advanced countries. This research attempts to recycle waste blood and rumen digesta generated in rural slaughterhouses as organic fertilizer, thus promoting sustainable agriculture. Results:The values of 5-day biochemical ...

  • Dead pigs harmless treatment methods in China

    Dead pigs harmless treatment methods in China Any pig farm will encounter dead pigs, dead pigs are often important sources of infection of diseases to spread and spread, causing major economic losses not only on pig-raising industry, also will be a serious threat to human or animal health, so the dead pigs should be a safe and effective treatment. in the course of our work, are often ...


    By Harden Industries Ltd.

  • Food Recovery in San Diego

    San Diego is the seventh largest city in the U.S. It is also part of San Diego County, ranked by Feeding America’s Map the Meal Gap 2012 as the seventh county in the U.S. with the highest number of food insecure individuals in 2010. According to Feeding America, 14.8 percent of the region is in the food insecure individuals category. As the City of San Diego (City) expands its commercial ...


    By BioCycle Magazine

  • Chicken slaughterhouse

    Country: U.S. Problem: Poor final effluent quality Product: BFL 5100HP Background A chicken slaughterhouse was killing 10,000 chickens per day. Final effluent was discharged to a stream. The final effluent COD was exceeding the discharge limit of 100mg/L and as a result it had to be tankered off site and spread on ...


    By Biofuture Ltd

  • Trenbolone causes mortality and altered sexual differentiation in Xenopus tropicalis during larval development

    Trenbolone is an androgen agonist used in cattle production and has been measured in aquatic systems associated with concentrated animal‐feeding operations. In this study, the authors characterized the effects of aqueous exposure to 17β‐trenbolone during larval Xenopus tropicalis development. Trenbolone exposure resulted in increased mortality of post‐Nieuwkoop–Faber stage 58 tadpoles at ...


    By John Wiley & Sons, Ltd.

  • Reuse of dairy lagoon wastewater through SDI in forage crops

    Abstract California has become the leading dairy products producing state in the USA. This has resulted in farms commonly milking several thousand cows per day. The care and feeding of the animals has produced large waste streams commonly collected and stored in lagoons. Environmentally safe handling and reuse of the lagooned wastewater is the objective of this study. A system of ...


    By Geoflow, Inc.

  • Laguna de Bay Institutional Strengthening and Community Participation Project DEWATS of the Slaughterhouses of Sta. Cruz and Nagcarlan, Laguna

    In December of 2003 a US $ 5 Million grant was provided by the Royal Government of the Netherlands through the International Bank for Reconstruction and Development (IBRD) for the Philippine government, as it embarked on the Laguna de Bay Institutional Strengthening and Community Participation (LISCOP) Project, which was overseen by the Department of ...


    By IWA Publishing

  • Compliance to environmental standards to abate further violation: DEWATS of Selected Slaughterhouses and Public Markets; and a University

    In this aggregate case study is the implementation of 6 project initiatives that made use of the Decentralized Wastewater Treatment System that is being promoted by the Basic Needs Philippines, Inc. (BNS). Most owners of the wastewater treatment plant (WWTP) facilities decided to engage in putting such infrastructure to improve its performance, insofar as its ...


    By IWA Publishing

  • Slaughterhouse case study

    Slaughterhouse in Ireland, part of an international group, found themselves unable to comply with their effluent discharge consent levels following the introduction of legislation adopting EU Environmental Directives. The slaughterhouse, on average, processes 200 sheep per day. The plant produces an effluent flow of approximately 200 m3/day and this, after treatment, is discharged into a river. ...


    By Cleveland Biotech Ltd.

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