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STRIVE Report Series No.74 STRIVE Report Series No.74 Spent Mushroom Compost Management and Options for Use STRIVE Environmental Protection Agency Programme 2007-2013 Comhshaol, Pobal agus Rialtas Áitiúil Environment, Community and Local Government EPA Inside Pages NEW_Blue Text 08/09/2011 11:09 Page 1 Environmental Protection Agency The Environmental Protection Agency (EPA) is REGULATING IRELAND’S GREENHOUSE GAS EMISSIONS a statutory body responsible for protecting n Quantifying Ireland’s emissions of greenhouse gases the environment in Ireland. We regulate and in the context of our Kyoto commitments. police activities that might otherwise cause n Implementing the Emissions Trading Directive, pollution. We ensure there is solid involving over 100 companies who are major information on environmental trends so that generators of carbon dioxide in Ireland. necessary actions are taken. Our priorities are protecting the Irish environment and ENVIRONMENTAL RESEARCH AND DEVELOPMENT ensuring that development is sustainable. n Co-ordinating research on environmental issues (including air and water quality, climate change, The EPA is an independent public body biodiversity, environmental technologies). established in July 1993 under the Environmental Protection Agency Act, 1992. STRATEGIC ENVIRONMENTAL ASSESSMENT Its sponsor in Government is the Department n Assessing the impact of plans and programmes on of the Environment, Community and Local the Irish environment (such as waste management Government. and development plans). ENVIRONMENTAL PLANNING, EDUCATION AND OUR RESPONSIBILITIES GUIDANCE n Providing guidance to the public and to industry on LICENSING various environmental topics (including licence We license the following to ensure that their emissions applications, waste prevention and environmental do not endanger human health or harm the environment: regulations). n Generating greater environmental awareness n waste facilities (e.g., landfills, incinerators, (through environmental television programmes and waste transfer stations); primary and secondary schools’ resource packs). n large scale industrial activities (e.g., pharmaceutical manufacturing, cement manufacturing, power plants); PROACTIVE WASTE MANAGEMENT n intensive agriculture; n Promoting waste prevention and minimisation n the contained use and controlled release of projects through the co-ordination of the National Genetically Modified Organisms (GMOs); Waste Prevention Programme, including input into the implementation of Producer Responsibility n large petrol storage facilities; Initiatives. n waste water discharges. n Enforcing Regulations such as Waste Electrical and Electronic Equipment (WEEE) and Restriction of NATIONAL ENVIRONMENTAL ENFORCEMENT Hazardous Substances (RoHS) and substances that deplete the ozone layer. n Conducting over 2,000 audits and inspections of EPA licensed facilities every year. n Developing a National Hazardous Waste Management Plan to prevent and manage hazardous waste. n Overseeing local authorities’ environmental protection responsibilities in the areas of - air, noise, waste, waste-water and water quality. MANAGEMENT AND STRUCTURE OF THE EPA n Working with local authorities and the Gardaí to The organisation is managed by a full time Board, stamp out illegal waste activity by co-ordinating a consisting of a Director General and four Directors. national enforcement network, targeting offenders, conducting investigations and overseeing remediation. The work of the EPA is carried out across four offices: n n Prosecuting those who flout environmental law and Office of Climate, Licensing and Resource Use damage the environment as a result of their actions. n Office of Environmental Enforcement n Office of Environmental Assessment MONITORING, ANALYSING AND REPORTING ON THE n Office of Communications and Corporate Services ENVIRONMENT n Monitoring air quality and the quality of rivers, The EPA is assisted by an Advisory Committee of twelve lakes, tidal waters and ground waters; measuring members who meet several times a year to discuss water levels and river flows. issues of concern and offer advice to the Board. n Independent reporting to inform decision making by national and local government. EPA STRIVE Programme 2007–2013 Spent Mushroom Compost Management and Options for Use (2007-FS-WRM-12-S5) STRIVE Report Prepared for the Environmental Protection Agency by Dundalk Institute of Technology Authors: Siobhán N. Jordan, Laura B. Holland and Suzanne U. Linnane ENVIRONMENTAL PROTECTION AGENCY An Ghníomhaireacht um Chaomhnú Comhshaoil PO Box 3000, Johnstown Castle, Co. Wexford, Ireland Telephone: +353 53 916 0600 Fax: +353 53 916 0699 Email: [email protected] Website: www.epa.ie © Environmental Protection Agency 2012 ACKNOWLEDGEMENTS This report is published as part of the Science, Technology, Research and Innovation for the Environment (STRIVE) Programme 2007–2013. The programme is financed by the Irish Government under the National Development Plan 2007–2013. It is administered on behalf of the Department of the Environment, Community and Local Government by the Environmental Protection Agency which has the statutory function of co-ordinating and promoting environmental research. DISCLAIMER Although every effort has been made to ensure the accuracy of the material contained in this publication, complete accuracy cannot be guaranteed. Neither the Environmental Protection Agency nor the author(s) accept any responsibility whatsoever for loss or damage occasioned or claimed to have been occasioned, in part or in full, as a consequence of any person acting, or refraining from acting, as a result of a matter contained in this publication. All or part of this publication may be reproduced without further permission, provided the source is acknowledged. The EPA STRIVE Programme addresses the need for research in Ireland to inform policymakers and other stakeholders on a range of questions in relation to environmental protection. These reports are intended as contributions to the necessary debate on the protection of the environment. EPA STRIVE PROGRAMME 2007–2013 Published by the Environmental Protection Agency, Ireland ISBN: 978-1-84095-398-5 Price: Free Online version ii Details of Project Partners Dr Siobhán N. Jordan Ms Laura B. Holland Organic Resources Research Group Organic Resources Research Group Centre for Freshwater Studies Centre for Freshwater Studies Dundalk Institute of Technology Dundalk Institute of Technology Dundalk Dundalk Co. Louth Co. Louth Ireland Ireland Tel.: +353 42 9370200 (extension 2515) Tel.: +353 42 9370200 (extension 2838) Email: [email protected] Email: [email protected] Dr Suzanne U. Linnane Centre for Freshwater Studies Dundalk Institute of Technology Dundalk Co. Louth Ireland Tel.: +353 42 9370200 (extension 2842) Email: [email protected] iii Table of Contents Acknowledgements ii Disclaimer ii Details of Project Partners iii Executive Summary vii 1 Review of Literature 1 1.1 Introduction 1 1.2 The Mushroom Industry in Ireland 1 1.3 Mushroom Compost 2 1.4 Legislations on SMC Management 12 1.5 Conclusions from Literature Review 23 1.6 Objectives of this Study 24 2 Remediation of Acid Mine Drainage Using Constructed Wetlands Comprising Spent Mushroom Compost 25 2.1 Introduction 25 2.2 Materials and Methods 25 3 Evaluation of the Remediation of Acid Mine Drainage Using Constructed Wetlands 33 3.1 Electrochemical Properties 33 3.2 Biogeochemistry Properties 36 3.3 Overall Discussion 42 4 Conclusion from Constructed Wetlands Trial 44 5 Recommendations 45 6 Best Practices for Environmental Protection for the Mushroom Farming Industry 46 6.1 Introduction 46 6.2 Management of Wastes from Mushroom Growing Operations 46 6.3 Mushroom Growing Operations and Permit Requirements 46 6.4 Spent Mushroom Compost Use Outside Normal Farming Operations 51 6.5 Spent Mushroom Compost Distribution and Sale Requirements 51 6.6 Overview of Mushroom Farm Environmental Management Plans 52 6.7 Conclusions to Best Practices for Environmental Protection 52 6.8 Recommendations for Developing a Mushroom Farm Environmental Management Plan 52 References 54 Acronyms 60 v Executive Summary Stringent monitoring stipulated by contemporary sulphate concentrations, organic substances and environmental legislation has led to a need for cost- possibly the activity of methanogenic bacteria over a efficient and sustainable approaches to recycling prolonged period of time. The removal of zinc and biodegradable wastes. One notable organic waste copper and, to a lesser extent, sulphate and iron from increasing in amount in Ireland and worldwide is spent within the system also indicates that the system is mushroom compost (SMC), a waste product of the capable of receiving a much larger volume of synthetic mushroom industry. In light of this, the research AMD (SAMD) as much of the removal took place in the presented here evolved around two main research first two cells. The results suggest that this wetland areas pertaining to various aspects of SMC system may prove to offer a long-term waste management: management option for SMC in Ireland, and also present an effective alternative to treating AMD. 1. The design and establishment of an in-house Recommendations from this trial include the constructed wetlands trial for treating metalliferous acid mine drainage (AMD), using requirement for an electrochemical data-logging SMC as the organic substrate; and device to be installed at large-scale constructed wetland sites so that the impact of temperature on 2. The development
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