Reducing pathogen and vector attraction for biosolids

Article Abstract:

The US Environmental Protection Agency's Pathogen Equivalency Committee has linked with E&A Environmental Consultants Inc to produce a new revision of the publication 'Environmental Regulations and Technology: Control of Pathogens and Vector Attraction in Sewage Sludge Under 40 CFR Part 503,' first issued in 1989. This revision presents more detail in its explanation of public health and operational matters. Its aim is to give regulators and biosolids management professionals improved understanding of the pathogen and vector attraction issues connected with biosolids reuse.

Laws, regulations and rules, Sewage sludge

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Composting coffee pulp in El Salvador

Article Abstract:

El Salvadoran coffee manufacturer ProCafe, in conjunction with USAID, launched a study to evaluate composting as a method for turning coffee pulp into usable waste. The method was applied to different pulp piles to determine the level of management necessary for composting to be effective. Piles that were mixed with manure and placed on top of windrows were more active, had higher temperatures, were less odorous and changed into pulp faster than those with a passive aeration system.

Research, Waste management, Wood waste as mulch, soil conditioner, etc., Soil amendments, Wood wastes, Wood-pulp, Wood pulp, Coffee waste

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Odor modeling as first line of defense

Article Abstract:

A number of air dispersion models are available for analyzing the impact of composting-related smells. The most widely used model is the EPA ISTSC3 industrial source short-term model.

Models, Environmental aspects, Compost plants, Odor control

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