Browsing by Author "Christian, Archer H."
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- Closing the Loop: Public-Private Partnerships for On-Farm Composting of Yard WasteChristian, Archer H.; Evanylo, Gregory K.; Pease, James W. (Virginia Cooperative Extension, 2009-05-01)Explains strategies for building public-private collaboration, providing education, transferring technology, and for creating an efficient system of residuals delivery and compost production for communities seeking to implement composting as an alternative to current waste management practices.
- Compost: What Is It and What's It To YouChristian, Archer H.; Evanylo, Gregory K.; Green, Robert (Virginia Cooperative Extension, 2018-02-28)Provides a detailed explanation of what compost is and is not, and also provides information about the benefits of compost for soil and plant improvements.
- Compost: What Is It and What's It To YouChristian, Archer H.; Evanylo, Gregory K.; Green, Robert (Virginia Cooperative Extension, 2009-05-01)Provides a detailed explanation of what compost is and is not and also provides details about the benefits of mature compost for soil and plant improvements.
- Mid-Atlantic Composting DirectoryEvanylo, Gregory K.; Haering, Kathryn; Sherony, Caroline A.; Christian, Archer H. (Virginia Cooperative Extension, 2011-08-04)Provides information about compost producers and suppliers, service and equipment suppliers, and information and education sources in a directory format.
- Mid-Atlantic Composting DirectoryEvanylo, Gregory K.; Haering, Kathryn; Sherony, Caroline A.; Christian, Archer H. (Virginia Cooperative Extension, 2015-01-06)Provides information about compost producers and suppliers, service and equipment suppliers, and information and education sources in a directory format.
- Mid-Atlantic Composting DirectoryEvanylo, Gregory K.; Haering, Kathryn; Sherony, Caroline A.; Christian, Archer H. (Virginia Cooperative Extension, 2018-07-19)This document is a directory of compost producers and suppliers in the Mid-Atlantic Region.
- Municipal yard waste composting: process parameters, windrow gases, and leachate qualityChristian, Archer H. (Virginia Tech, 1995-08-14)A Municipal Yard Waste Composting Research and Demonstration Project was conducted to examine the process, quality of leachate, and viability of this technology for large-scale, low-technology application. Project research objectives were: 1) to characterize C/N, temperature, and moisture relationships of yard waste during composting and the elemental composition of the finished compost; 2) to investigate the oxygen (O₂), carbon dioxide (CO₂) and methane (CH₄) relationships in the composting yard waste; and 3) to quantify water quality parameters of the leachate from yard waste composting mixes. Mixes of 3 parts leaves/1 part grass, 2 parts woodchips/1 part grass, and leaves alone were composted in windrows. Process control was by a front-end loader/back-hoe according to a 60°C maximum temperature set-point, initially, and by temperature plateaus or moisture conditions following most active composting. Composting was more efficient with the presence of grass clippings. Some CH₄ was observed within windrows microsites, even under overall aerobic conditions. Occasional methane production not in excess of approximately 4x10⁻² mmol/l reflects inconsequential anaerobiosis. Leachate from individual windrows was minimal but contained high concentrations of total Kjehldahl nitrogen (TKN), total phosphorus, and biological oxygen demand. Soil degradation processes should ameliorate these. The leaf/grass mix generated the greatest quantities of carbon dioxide, strongly correlated oxygen and carbon dioxide concentrations, steepest temperature profile, and the highest concentrations of plant nutrients in material composted for between 8 and 24 weeks. Low-technology composting of yard wastes can be an effective, low-cost alternative to landfilling, with substantial societal and environmental benefits.
- On-Farm Composting: A Guide to Principles, Planning & OperationsChristian, Archer H.; Evanylo, Gregory K.; Pease, James W. (Virginia Cooperative Extension, 2009-05-01)Contains a discussion of basic composting principles, compostable materials, composting systems, the use of compost and its benefits, the steps for facility planning and operation, and the regulations that govern on-farm composting.
- The Virginia Yard Waste Management ManualEvanylo, Gregory K.; Sherony, Caroline A.; May, Jim; Simpson, Thomas W.; Christian, Archer H. (Virginia Cooperative Extension, 2009-05-01)This manual is designed as a total management to guide public and private sector composters through the steps necessary to site, design, and operate a yard-waste management program. Information on the principles of composting are presented along with technologies that can assist the composter in making a consistently high quality product.