composting drying Articles

  • Dry matter mass balance estimates for composted feedlot manure

    Accurate dry matter mass balance (DMMB) estimates are important if knowledge of nutrient component changes on a mass basis is required for manure handling practices. We compared four methods of estimating DMMB during composting of solid feedlot manure. A manure stockpiling treatment was included for comparison. A method which used carbon (C) concentration to calculate organic matter, and hence ...


    By BioCycle Magazine

  • Compost Users Forum: The Applied Thoughts Of A Compost Theorist

    WITHIN a 60-mile radius of my office here in central California, there are 1,000 dairies — each having an average of 2,000 cows. They generate over four million tons of manure annually, so we are pretty much in the manure business whether we want to be or not. Somebody has to manage this material and help the farmers utilize it properly, fulfilling its potential monetary value. That’s what we ...


    By BioCycle Magazine

  • Worming the way to finished compost

    SCREENING AND GRINDING When materials from CR&R and other generators are unloaded, a preliminary screening separates out nonorganic contaminants.    Even though there are source separated programs in places like Temecula and Lake Elsinore, there is the occasional appearance of plastic and glass that needs to be sorted out. Next, Bodlak’s crews put materials through a Vermeer tub ...


    By BioCycle Magazine

  • Phosphorus And Compost Use Dynamics

    Organic forms of phosphorus, such as biosolids and compost products, contain low to very low levels of water extractable phosphorus, but increasingly are regulated like inorganic P sources. Phosphorus is one of the 16 essential plant nutrients, and is considered one of the three major plant nutrients (along with nitrogen and potassium). Phosphorus is not only important in root development, but ...


    By BioCycle Magazine

  • Composting Site Remediation Success

    Dorchester County, Maryland agreed to a remediation plan that involved composting the 140,000 tons of unprocessed feedstocks stored on site. An aggressive strategy has ...


    By BioCycle Magazine

  • Anaerobic Digestion Of Compostable Bags

    Dry anaerobic digestion facility in Luxembourg successfully treats mixed yard and food waste collected in compostable plastic bags. Preprocessing, anaerobic digestion and composting operations are enclosed at the Syndicat Minett-Kompost facility. While the value of compostable plastic bags to increase participation in residential source separated organics (SSO) programs is well-recognized, much ...


    By BioCycle Magazine

  • Monitoring Moisture In Composting Systems

    Monitoring Moisture In Composting Systems IF YOU SQUEEZE a handful of material and water drips or trickles out, it is the right moisture content for composting.” This bit of hands-on wisdom comes from the proverbial squeeze-test for evaluating moisture in composting piles. It has been uttered by Master Gardeners and other composting educators for many years as a tool for determining, and ...


    By BioCycle Magazine

  • Devontalk - Composting in schools in Devon

    Do you know what London's 02 Arena and Okehampton College have in common? It's something called Big Hanna, a huge shiny composter that turns all their food waste into compost. Big Hanna arrived in Okehampton last year and immediately made her presence felt because someone had to look after her and feed her regularly. That someone is Okehampton-born and bred Gary Drew, who went to the college ...


    By Susteco AB

  • Physical Contaminant Testing Of Composts

    Changes are in progress in multiple countries on weight-based limits for physical contaminants in composts. The net effect may be higher quality compost products. Maintaining and improving compost product quality is vitally important for ensuring continued confidence in organic waste recycling industries around the world. One quality criterion of particular interest from the general ...


    By BioCycle Magazine

  • Canadian Composting Industry on the Grow

    Organic residuals continue to represent one of the largest untapped portions of the residential and industrial waste streams in Canada. However, this will not continue for much longer. Throughout Canada, programs have been or are about to be established that will capture organic materials and, through composting, transform them into value-added products for use in a multitude of applications. The ...


    By BioCycle Magazine

  • Troubleshooting the Compost Pile

    While composting is a biological process, we as composters must provide the microorganisms that do the work with the conditions they need to do their job. If there is a problem with the system, then look at it from the point of view of the microbe. What does that microbe need to function, and why isn’t it functioning correctly? Microorganisms need a source of energy organic feedstocks to feed on ...


    By BioCycle Magazine

  • Composting Livestock Mortalities

    Performance, composting methods, environmental impacts and biosecurity of the process are evaluated for emergency disposal of cattle by research team at Iowa State University. A THREE-YEAR study was commissioned by the Iowa Department of Natural Resources to evaluate the practical feasibility, performance, environmental impacts and biosecurity of using composting for emergency disposal - should a ...


    By BioCycle Magazine

  • In-Vessel Composting of Residential Organics

    In 1994, the Regional Municipality of Peel began work on a system for residential organic residuals collection and composting. Although Peel had been promoting backyard composting, greater diversion rates were sought. The public was surveyed to determine what level of cooperation could be expected for source separation and setting out of food, soiled paper products, yard trimmings, etc. “We knew ...


    By BioCycle Magazine

  • Contained Composting Systems Rewiew

    Having gained success in recycling yard trimmings, composters and recycling coordinators are reaching deeper into the organic residuals pile to capture other feedstocks. In particular, their sights are set on source separated food materials, from institutions (e.g. schools, hospitals), grocery stores and produce markets, food processors and commercial food service facilities (e.g. restaurants). A ...


    By BioCycle Magazine

  • Innovations in Compost Facility Structures

    Untitled Document THE PROCESS of turning organic feedstocks - everything from yard trimmings, woody residuals, biosolids and manures - into compost involves moisture, heat and acids that can be tough on ...


    By BioCycle Magazine

  • Operator insights: compostable products

    Compostable products are increasingly a part of the formula when companies, institutions, municipal programs and special events decide to go green, usually to implement a food scraps diversion program. Due to increasing demand, the compostable products industry is growing rapidly, with many different options on the market. BioCycle has been covering developments in the compostable products ...


    By BioCycle Magazine

  • Composting In rural Alaska

    Gardeners, communities and commercial enterprises have proven that composting works in Alaska, especially given large quantities of fish waste and diminishing landfill capacity. ALASKA is two and a half times larger than the largest state in the lower 48 states. Over half of the entire state’s population lives within the municipality of Anchorage. Many Alaskan villages can only be reached ...


    By BioCycle Magazine

  • Mixed MSW composting in transition

    WITHOUT a doubt, composting the mixed municipal solid waste stream is a “niche” business. It is an MSW management option that seems to be viable in very specific situations. In some instances, these plants were built to service tourist destinations, often in somewhat rural areas where recycling is difficult and landfills are distant. In several other cases, public agencies built plants to extend ...


    By BioCycle Magazine

  • Regulation of nitrogen contents of Composts during composting first experimental results

    More than 3 Mio. Mg of compost were produced in Germany in 1998 (Wiemer and Kern 1998). Kitchen and garden waste from households as well as waste from landscaping and parks were used as substrates to a high extent. The composts were mainly used in landscaping, recultivation, horticulture, substrate production and in agriculture. Applied on cultivable land compost can improve the soil structure ...


    By ORBIT e.V.

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