compost processing Articles

  • A study on Air Filled Porosity evolution in sludge composting

    Air Filled Porosity (AFP) is a key parameter in the composting process, conditioning oxygen availability and heat accumulation. Air pycnometry is considered the most adequate methodology for AFP determination. This technique requires withdrawing a sample of material from the composting mass for AFP measurement, which may alter its physical characteristics. A novel strategy that permits to measure ...


    By Inderscience Publishers

  • Leaf composting in cold climates: a theoretical and an experimental evaluation

    There are many factors influencing the process of composting organic waste. This paper provides an experimental and theoretical evaluation of the leaf composting process to elucidate the importance of these various factors during composting of leaves. The analysis is performed specifically for the environmental conditions encountered in cold climates. Theoretical models are developed to evaluate ...


    By Inderscience Publishers

  • What is used for the fertilizer fermentation process?

    The production of any qualified and high quality organic fertilizer must go through composting and fermentation process. Fermentation composting is a process in which organic matter is continuously degraded and stabilized through the action of microorganisms under certain conditions, and a product suitable for land use is produced. After the high temperature stage of composting process, the ...

  • Composting Process and Organic Fertilizers Production

    Illustrated explanation of two broad stages that are usually applied in most composting facility. First, composting process that convert raw compost into mature compost. Second, organic fertilizers production that convert mature compost into granulated fertilizers. Feedstock for composting stage can be farm and animal husbandry wastes, biomass from plants, and biodegradables that have been ...


    By CV Wirajasa Teknik Industri

  • There are two main aerobic composting processes of cow manure

    There are two main aerobic composting processes of cow manure: (1) Stacking type composting process: pave the materials with proper moisture adjustment in layers according to a certain height and width into stacking shape, and arrange the stacking in parallel on the open or indoor flat composting yard, it is good to use the high-efficiency professional stacker to ride across the pile for ...

  • Project Compo-Ball - Case Study

    Compo-Ball is developing a new system for monitoring the temperature and humidity during composting processes. The 3-year research project is funded by the European Commission and brings together 16 partners from 9 European countries. The aim is to bring affordable wireless composting-sensors to the European composting ...

  • Carbon credit from composting of municipal solid waste

    The estimation of carbon credit from composting of MSW has been presented in this paper. The Municipal Solid Waste (MSW) used in formation of windrow was collected from the NERIST campus. Loss on Ignition (LOI) was measured which represents the amount of carbon and remaining ash in solid waste samples after ignition. As an absolute measure of biodegradable carbon, LOI provides an excellent ...


    By Inderscience Publishers

  • Composting of washed Ulva reticulata seaweed: process parameter variations and compost quality

    Co–composting process of unwashed (Run A) and washed (Run B) seaweed Ulva reticulata with bagasse and broiler litter was studied. Peak temperatures of 48.9°C and 55.2°C were recorded for Runs A and B, respectively. For Run A, the starting wet bulk density was 43.31 kgm–3 and increased by 5.2 times on day 23. Net biodegradable Volatile Solid (VS) reductions were 2.19 and 11.44% for Runs A and B, ...


    By Inderscience Publishers

  • Aerated Static Pile (ASP) Composting Technology

    The Winter 2012 issue of The Instructor, the Offical Publication of the Certified Horsemanship Association, includes an article by John Bouey, President of Managed Organic Recycling on the Aerated Static Pile (ASP) Composting Technology for organic recycling and composting. Article is a basic overview of the ASP Composting Technology and composting process. Full issue can be found at ...

  • A comparative study between composting and vermicomposting for recycling food wastes

    The main objective of the present work was to evaluate the potential of the epigeic earthworms Eisenia fetida and Eudrilus eugenaie regarding the decomposition of food wastes. The effectiveness of composting and vermicomposting for the treatment of food wastes was judged by analysing a wide range of physic–chemical parameters. The results from the compost process monitoring showed porosity rise ...


    By Inderscience Publishers

  • Research Analysis of the Market Potential For Lower Grade Composted Materials in the UK

    Executive Summary 1. Description This report presents the findings of research undertaken by WRc, under contract to the Waste andResources Action Programme (WRAP). The research analysed the market potential for low grade composted materials in the UK, taking the risks associated with their use in different applications into account. It also assessed the viability of introducing standards for ...


    By WRc plc

  • Co-composting of coir pith and cow manure: initial C/N ratio vs physico-chemical changes

    Background:As objective of this study was focused on efficacy of composting of a recalcitrant organic waste material, co-composting of coir pith with cow manure and rice bran was endeavored to evaluate influence of initial C/N ratios, i.e., 30, 25, and 20, on physico-chemical changes, e.g., temperature, pH, organic matter (OM) degradation, and total nitrogen (TN) losses. Results:Results showed ...

  • The relevance of moisture control in organic municipal Solid waste windrow composting process

    The valorisation of the Municipal Solid Waste composting fraction assumes importance in management strategies of the MSW and constitutes a way of producing an organic material such as humus to improve the soil aeration, the water holding capacity and valuable product when used as soil amendment because it is a source of nutrients (N, P, K) and useful for recovery of poor and degraded soils. It ...


    By ORBIT e.V.

  • Benefits of using windrow turner for manure composting

    When composting process is used to ferment organic fertilizer raw materials, compost turner machine is indispensable for organic fertilizer manufacturing process. The commonly used composting methods are trough composting and strip composting, and the equipment used in different ways is also different. The trough type composting process adopts the trough compost turning machine, while the strip ...

  • Odour emissions from MSW composting process steps

    This study brought to the definition and the calculation of Odour Emission Factors (OEFs), which enable the estimation of odour emissions from a composting plant by relating the quantity of odour emitted to the atmosphere to a given associated activity. The results show that the aerobic biological treatment has the highest odour impact, with an OEF of 1.4 ? 108 ouE t−1. Moreover, the efficiency ...


    By Inderscience Publishers

  • Homogenous mixing for shortening of composting processes - Case Study

    Various treatment processes are used today for manufacturing compost, of which two are of particular interest in terms of mixing and treatment technology. They are open composting and container composting. In both cases e.g. sewage sludge (wet and dry), chopped paper, loppings, green waste, and sawdust are pre-mixed with the possible addition of small amounts of active substances. The task of ...


    By AVA GmbH u. Co. KG

  • The effects of bioadditive in the form of yeasts and zeolite on the composting process and odour emission

    The objectives of this paper are to determine the effectiveness of bioadditive in the form of yeasts and zeolite in reducing odour and ammonia emissions during composting and to assess its effects on the process. Two series of experiments were conducted. The higher dosage treatments reached thermophilic temperatures sooner and the high temperatures stayed longer. The application of bioadditive at ...


    By Inderscience Publishers

  • Evaluation of FTIR spectroscopy as a maturity index for herbicide-contaminated composts

    This paper analyses the use of Fourier Transform Infrared (FTIR) spectroscopy as a maturity index for herbicide-contaminated green wastes composts. Four in-vessel composting systems were set-up with Compost A constituting of uncontaminated grass clippings and Composts B, C and D contaminated with atrazine, 2,4-D and tordon 101 respectively. The physicochemical properties of the composts were ...


    By Inderscience Publishers

  • Effect of covering composting piles with mature compost on ammonia emission and microbial community structure of composting process

    Received for publication February 14, 2008. To control ammonia (NH3) volatilization from the dairy cattle (Bos taurus) manure composting process, a compost pile was covered with mature compost and the gas emissions evaluated using the dynamic chamber system. The peak of NH3 volatilization observed immediately after piling up of the compost was reduced from 196 to 62 mg/m3 by covering the compost ...

  • Canadian food inspection agency (CFIA) manitoba composting exercise case study

    Overview: Nordevco was invited to participate in a Canadian Food Inspection Agency (CFIA) composting exercise by the CFIA Manitoba Team. The purpose of Nordevco’s participation was to evaluate the impact of BactiDomus Technology on the composting process specifically related to achieving and maintaining temperatures appropriate for the inactivation of the pathogen responsible for avian ...


    By Nordevco Associates Ltd.

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