biodigester Articles

  • Quantifying Fugitive Emissions from Biodigesters

    Background Agricultural biodigesters reduce greenhouse gas (GHG) emissions & generate clean energy. GHG reduction depends on many factors (design, feedstock, etc.), including the amount of fugitive CH4 emissions. Quantifying fugitive emissions is difficult -- commonly assumed: 15% of total CH4 production (California Climate Action Registry ) 15% of ...


    By PKL Technologies Inc.

  • Biogas digesters for Vietnamese: a multi-partner national Biodigester program in Vietnam

    Water and sanitation are one of the most pressing issues facing people in rural Vietnam. Of particular difficulty for sanitation advocates in Vietnam is the habit of using raw feces to fertilize rice fields, with the result of exposing human excreta to the environment. This leads to water and soil contamination and to widespread disease outbreaks. The UN estimated that, in 2010, only 18% of rural ...


    By IWA Publishing

  • Biogas digesters for Cambodians: A multi-partner national biodigester program in Cambodia

    Water and sanitation are one of the most pressing issues facing people in rural Cambodia. Of particular difficulty for sanitation advocates in Cambodia is the old habit of open defecation, with the result of exposing human excreta to the environment. This leads to water and soil contamination and to widespread disease outbreaks. The UN estimated that, in 2008, only 23% of ...


    By IWA Publishing

  • Genotoxicity of swine effluents

    This study aimed at the investigation of genotoxic effects of swine effluents from different stages of a treatment system for swine wastes through bioassay of stamen hairs and micronuclei in Tradescantia (clone BNL 4430). No significant differences (p≥0.05) regarding the genic mutations were found in the bioassay of stamen hairs, independently of the effluent analysed. For the ...


    By IWA Publishing

  • Evaluation of the aerobic and anaerobic biodegradability of the antibiotic norfloxacin

    The purpose of studying the biodegradability of pharmaceutical compounds is to evaluate their behaviors in relation to the treatment processes generally used in domestic and industrial wastewater treatment plants. The antibiotic norfloxacin was found to be a recalcitrant compound. The studies conducted showed norfloxacin removal rates of 12% and 18% when biomasses from treatments ...


    By IWA Publishing

  • Floating community ecological sanitation project on the Tonle Sap Lake

    Water and sanitation are some of the most pressing issues facing people in rural Cambodia, and they are even more difficult to access for people that live in floating and flood-affected communities on Cambodia’s waterways. Human development in the country is still restrained by pollution and poor health, yet there is a lack of appropriate ...


    By IWA Publishing

  • RTI`s Co-digester Creator V. 3.0 (beta)

    March 13, 2013.  In conjunction with this year's Global Methane Initiative conference taking place now in Vancouver, RTI is launching our next version of our codigestion creator software, version 3.0.  Biodigestion is the anaerobic decomposition of organic material with methane (biogas) as an output.  Co-digestion is the simultaneous digestion of more than one feedstock in a single ...


    By IWA Publishing

  • Honduras: Generating bioenergy from polluting waste ...

    The idea came up during the latest Expobioenergía Workshop The baselines of this idea were drawn up during the Expobioenergía 2010 Workshop, “at some stage of the tour we made of the various companies and projects we had the chance to visit during the event”, explains Julio César Lucas, a member of the Honduran firm Quimys’ Oil S. de R.L. Following its visit ...

  • Using full-scale duckweed ponds as the finish stage for swine waste treatment with a focus on organic matter degradation

    The rapid increase in the number of swine has caused pronounced environmental impacts worldwide, especially on water resources. As an aggregate, smallholdings have an important role in South American pork production, contributing to the net diffusion of pollution. Thus, duckweed ponds have been successfully used for swine waste polishing, mainly for nutrient removal. Few studies have been ...


    By IWA Publishing

  • Zero Waste System in Paradise

    Most visitors to Fiji come for rest and relaxation on the white sand beaches or for diving and snorkeling among the unspoiled coral reefs. Few visitors realize that this tropical island in the South Pacific, north of New Zealand, is on the cutting edge of industrial ecology with a fully functional, zero waste program located near the Fijian capital of Suva. As part of an EPA funded review of ...


    By BioCycle Magazine

  • Case study - Sacramento, California: The first U.S. city to power refuse trucks on renewable natural gas (RNG) made from separated food

    California has long been a pioneer in implementing sustainable transportation strategies, and yet again, the State can claim another first-of-its land project in the United States as its own. By collecting and diverting food waste from a local landfill, two Sacramento-area companies, CleanWorld and Atlas Disposal Industries, have opened the Sacramento Biodigester — the first closed-loop ...


    By Energy Vision

  • Entrepreneur Connects Generators To AD

    A Northeast company brings anaerobic digestion and renewable energy to the feedstock sources in Ohio and New York State. Western New York is one of the top dairy-producing regions in the U.S. The by-products of making milk, cream, yogurt and other dairy products have certain characteristics that make them ideal fuel for anaerobic digesters designed to produce methane gas for the ...


    By BioCycle Magazine

  • Regional Roundup

    NATIONAL PRESS CLUB DIVERTS FOOD WASTEThe National Press Club (NPC) in Washington, D.C. started diverting its pre and postconsumer food waste to composting in September. Working with EnviRelation, an organics hauler, NPC has achieved a 75 percent volume reduction in waste, filling one instead of four 16-cubic foot containers per day with trash. This is expected to equal two tons of food waste ...


    By BioCycle Magazine

  • Highmark secures allowance for US and South African patents for Integrated bioRefinery technology platform

    The standard has been raised for economically producing renewable gas/electricity/heat and valuable bio-products. Highmark's newest Waste-to-Energy technology is officially acknowledged as novel and unique and will now enjoy commercial protection. These patents join the family of inventions known as IMUS or the Integrated bioMass Utilization System. Highmark Renewables announces that key ...


    By Himark bioGas Inc

  • Focus on Biogas Plants

    To meet the domestic fuel and bio-fertilizer needs, 3,680 biogas plants are planned to be set up in rural areas by June 2012, according to Pakistan Centre for Renewable Technologies. The Centre says that over 2,100 family-size biogas plants — against the target of 2,500 — have already been set up throughout the country. The programme, supported by NGOs, farmers’ bodies and the ...


    By Himark bioGas Inc

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