Status of Industrial Scale Radiation Treatment of Wastewater and Its Future
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Non-Incineration Medical Waste Treatment Technologies
Non-Incineration Medical Waste Treatment Technologies A Resource for Hospital Administrators, Facility Managers, Health Care Professionals, Environmental Advocates, and Community Members August 2001 Health Care Without Harm 1755 S Street, N.W. Unit 6B Washington, DC 20009 Phone: 202.234.0091 www.noharm.org Health Care Without Harm 1755 S Street, N.W. Suite 6B Washington, DC 20009 Phone: 202.234.0091 www.noharm.org Printed with soy-based inks on Rolland Evolution, a 100% processed chlorine-free paper. Non-Incineration Medical Waste Treatment Technologies A Resource for Hospital Administrators, Facility Managers, Health Care Professionals, Environmental Advocates, and Community Members August 2001 Health Care Without Harm www.noharm.org Preface THE FOUR LAWS OF ECOLOGY . Meanwhile, many hospital staff, such as Hollie Shaner, RN of Fletcher-Allen Health Care in Burlington, Ver- 1. Everything is connected to everything else, mont, were appalled by the sheer volumes of waste and 2. Everything must go somewhere, the lack of reduction and recycling efforts. These indi- viduals became champions within their facilities or 3. Nature knows best, systems to change the way that waste was being managed. 4. There is no such thing as a free lunch. Barry Commoner, The Closing Circle, 1971 In the spring of 1996, more than 600 people – most of them community activists – gathered in Baton Rouge, Up to now, there has been no single resource that pro- Louisiana to attend the Third Citizens Conference on vided a good frame of reference, objectively portrayed, of Dioxin and Other Hormone-Disrupting Chemicals. The non-incineration technologies for the treatment of health largest workshop at the conference was by far the one care wastes. -
A Combined Vermifiltration-Hydroponic System
applied sciences Article A Combined Vermifiltration-Hydroponic System for Swine Wastewater Treatment Kirill Ispolnov 1,*, Luis M. I. Aires 1,Nídia D. Lourenço 2 and Judite S. Vieira 1 1 Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), School of Technology and Management (ESTG), Polytechnic Institute of Leiria, 2411-901 Leiria, Portugal; [email protected] (L.M.I.A.); [email protected] (J.S.V.) 2 Applied Molecular Biosciences Unit (UCIBIO)-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology (FCT), NOVA University of Lisbon, 2829-516 Caparica, Portugal; [email protected] * Correspondence: [email protected] Abstract: Intensive swine farming causes strong local environmental impacts by generating ef- fluents rich in solids, organic matter, nitrogen, phosphorus, and pathogenic bacteria. Insufficient treatment of hog farm effluents has been reported for common technologies, and vermifiltration is considered a promising treatment alternative that, however, requires additional processes to remove nitrate and phosphorus. This work aimed to study the use of vermifiltration with a downstream hydroponic culture to treat hog farm effluents. A treatment system comprising a vermifilter and a downstream deep-water culture hydroponic unit was built. The treated effluent was reused to dilute raw wastewater. Electrical conductivity, pH, and changes in BOD5, ammonia, nitrite, nitrate, phosphorus, and coliform bacteria were assessed. Plants were monitored throughout the experiment. Electrical conductivity increased due to vermifiltration; pH stayed within a neutral to mild alkaline range. Vermifiltration removed 83% of BOD5, 99% of ammonia and nitrite, and increased nitrate by Citation: Ispolnov, K.; Aires, L.M.I.; 11%. -
Inclusive Business Models for Wastewater Treatment
INCLUSIVE INNOVATIONS Inclusive Business Models for Wastewater Treatment Enterprises have developed integrated, affordable wastewater treatment solutions for industries and households to encourage reuse or safe disposal HIGHLIGHTS • Wastewater treatment enterprises treat water before disposal or recycle the water so that it can be reused. • Enterprises provide household wastewater treatment systems that are modular, have low operating costs in terms of electricity and maintenance, have silent operation and less odor and offer quick returns on investment. • Enterprises focusing on industrial wastewater treatment solutions offer efficiency and cost effectiveness. They are quickly commissioned, fully automatic, have remote monitoring, require minimal hazardous chemicals, and treat water for reuse. Summary Wastewater sources include domestic wastewater—pertaining to liquid outflow from toilets, bathrooms, basins, laundry, kitchen sinks and floor washing, and industrial wastewater—effluent water that is discharged during manufacturing processes in factories or by-products from chemical reactions. There are significant operational and financial challenges associated with wastewater treatment in marginalized residential communities, where domestic wastewater does not get treated at source, but instead is discharged to local municipal facilities or directly into water bodies. Similarly, industrial wastewater is heavily contaminated and leads to pollution and diseases, if disposed without treatment. It may also contain metals that have high market value and could potentially be recovered. Social enterprises have introduced unique technologies and integrated solutions to treat such wastewater either for safe disposal or for reuse. These solutions aim to be efficient, affordable and convenient. There are two major types of wastewater treatment plants—household (residential) systems and industrial systems. This series on Inclusive Innovations explores business models that improve the lives of those living in extreme poverty. -
Reuse: a Safe and Effective Way to Save Water
SOUTH FLORIDA WATER MANAGEMENT DISTRICT Water Reuse: A safe and effective way to save water ON THE INSIDE The demand for water is projected to increase over the long term in n Reclaimed water and reuse explained South Florida. Urban populations, agricultural operations and the environment depend on adequate water supplies. Fresh ground n Reuse success stories water and surface water will not be sufficient to satisfy all future n Reuse on a regional level demands. Meeting this growing thirst hinges on efforts to develop How water is reclaimed n alternative water sources. This brochure looks at one of the ways to n Purple pipes signify conserve Florida’s water resources — reclaiming water for reuse. reclaimed water Consider what happens to the water used inside the home. Once down the drain, this water is piped to the local wastewater treatment plant where it undergoes treatment to meet state standards for disposal. Historically, most of the water was disposed by injecting it deep underground or by discharging to surrounding waters or to the ocean. This is a wasteful way to treat such a valuable resource. More and more communities are finding that wastewater need not be wasted. They are reclaiming this water for irrigation of residential lots, golf courses, sports fields and orange groves; industrial cooling; car washing; fire protection; and Reclaimed water sign in Collier County groundwater recharge. Reuse is also beneficial to the environment. Success Stories During times of drought, reclaimed water •Pompano Beach – The city takes is a dependable source of water because wastewater being piped to the ocean, its availability is not dependent on rainfall. -
Legislation for the Reuse of Biosolids on Agricultural Land in Europe: Overview
sustainability Review Legislation for the Reuse of Biosolids on Agricultural Land in Europe: Overview Maria Cristina Collivignarelli 1 , Alessandro Abbà 2, Andrea Frattarola 1, Marco Carnevale Miino 1 , Sergio Padovani 3, Ioannis Katsoyiannis 4,* and Vincenzo Torretta 5 1 Department of Civil and Architectural Engineering, University of Pavia, via Ferrata 1, 27100 Pavia, Italy; [email protected] (M.C.C.); [email protected] (A.F.); [email protected] (M.C.M.) 2 Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, via Branze 43, 25123 Brescia, Italy; [email protected] 3 ARPA Lombardia, Pavia Department, via Nino Bixio 13, 27100 Pavia, Italy; [email protected] 4 Department of Chemistry, Laboratory of Chemical and Environmental Technology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece 5 Department of Theoretical and Applied Sciences, University of Insubria, via G.B. Vico 46, 21100 Varese, Italy; [email protected] * Correspondence: [email protected] Received: 17 September 2019; Accepted: 25 October 2019; Published: 29 October 2019 Abstract: The issues concerning the management of sewage sludge produced in wastewater treatment plants are becoming more important in Europe due to: (i) the modification of sludge quality (biological and chemical sludge are often mixed with negative impacts on sludge management, especially for land application); (ii) the evolution of legislation (landfill disposal is banned in many European countries); and (iii) the technologies for energy and material recovery from sludge not being fully applied in all European Member States. Furthermore, Directive 2018/851/EC introduced the waste hierarchy that involved a new strategy with the prevention in waste production and the minimization of landfill disposal. -
Use of a Water Treatment Sludge in a Sewage Sludge Dewatering Process
E3S Web of Conferences 30, 02006 (2018) https://doi.org/10.1051/e3sconf/20183002006 Water, Wastewater and Energy in Smart Cities Use of a water treatment sludge in a sewage sludge dewatering process Justyna Górka1,*, Małgorzata Cimochowicz-Rybicka1 , and Małgorzata Kryłów1 1 University of Technology, Department of Environmental Engineering, 24 Warszawska, Cracow 31- 155, Poland Abstract. The objective of the research study was to determine whether a sewage sludge conditioning had any impact on sludge dewaterability. As a conditioning agent a water treatment sludge was used, which was mixed with a sewage sludge before a digestion process. The capillary suction time (CST) and the specific filtration resistance (SRF) were the measures used to determine the effects of a water sludge addition on a dewatering process. Based on the CST curves the water sludge dose of 0.3 g total volatile solids (TVS) per 1.0 g TVS of a sewage sludge was selected. Once the water treatment sludge dose was accepted, disintegration of the water treatment sludge was performed and its dewaterability was determined. The studies have shown that sludge dewaterability was much better after its conditioning with a water sludge as well as after disintegration and conditioning, if comparing to sludge with no conditioning. Nevertheless, these findings are of preliminary nature and future studies will be needed to investigate this topic. 1 Introduction Dewatering of sludge is a very important stage of the sludge processing. It reduces both sludge mass and volume, which consequently reduces costs of a further sludge processing, facilitates its transport and allows for its thermal processing. -
Anaerobic Digestion of Wastewater Sludge (Nazaroff & Alvarez-Cohen, Section 6.E.3)
Anaerobic Digestion of Wastewater Sludge (Nazaroff & Alvarez-Cohen, Section 6.E.3) nice, clean water going to disinfection and then to outdoor body of receiving water (stream, lake or sea) sludge in need of further treatment The goal is to reduce the amount of sludge that needs to be disposed. The most widely employed method for sludge treatment is anaerobic digestion. In this process, a large fraction of the organic matter (cells) is broken down into carbon dioxide (CO2) and methane (CH4), and this is accomplished in the absence of oxygen. About half of the amount is then converted into gases, while the remainder is dried and becomes a residual soil-like material. What the equipment looks like The tank is capped - to prevent oxygen from coming in, - to prevent odors from escaping, and - to capture the methane produced. This methane, a fuel, can be used to meet some of the energy requirements of the wastewater treatment facility (co-generation). What the sludge looks like after anaerobic digestion and subsequent drying. It is rich in nitrates and performs well as a fertilizer. (Photos from http://www.madep-sa.com/english/wwtp.html) 1 (Originally from Metcalf & Eddy, 1991) from & Metcalf Eddy, (Originally 6.E.7) Figure Alvarez-Cohen, & (Nazaroff How the system works The treatment of wastewater sludge, from both primary and secondary treatment steps, consists of two main phases. ● In the 1st step, all incoming flows of sludge are combined, and the mixture is heated to a mild temperature (about body temperature) to accelerate biological conversion. The residence time here ranges from 10 to 20 days. -
Medical Waste Treatment Technologies
Medical Waste Treatment Technologies Ruth Stringer International Science and Policy Coordinator Health Care Without Harm Dhaka January 2011 Who is Health Care Without Harm? An International network focussing on two fundamental rights: • Right to healthcare • Right to a healthy environment Health Care Without Harm • Issues • Offices in – Medical waste –USA –Mercury – Europe – PVC – Latin America – Climate and health – South East Asia – Food • Key partners in – Green buildings –South Africa – Pharmaceuticals – India –Nurses – Tanzania – Safer materials –Mexico • Members in 53 countries Global mercury phase-out • HCWH and WHO partnering to eliminate mercury from healthcare • Part of UN Environment Programme's Mercury Products Partnership. • www.mercuryfreehealthcare.org • HCWH and WHO are principal cooperating agencies • 8-country project to reduce impacts from medical waste – esp dioxins and mercury • Model hospitals in Argentina, India, Latvia, Lebanon, the Philippines, Senegal and Vietnam • Technology development in Tanzania Incineration No longer a preferred treatment technology in many places Meeting modern emission standards costs millions of dollars Ash must be treated as hazardous waste Small incinerators are highly polluting Maintenance costs can be high, breakdowns common Decline in Medical Waste Incinerators in the U.S. 8,000 6,200 6,000 5,000 4,000 2,400 2,000 Incinerators 115 83 57 #of Medical Waste Waste Medical #of 0 1988 1994 1997 2003 2006 2008 Year SOURCES: 1988: “Hospital Waste Combustion Study-Data Gathering Phase,” USEPA, December 1998; 1994: “Medical Waste Incinerators-Background Information for Proposed Standards and Guidelines: Industry Profile Report for New and Existing Facilities,” USEPA, July 1994; 1997: 40 CFR 60 in the Federal Register, Vol. -
Waste Technologies: Waste to Energy Facilities
WASTE TECHNOLOGIES: WASTE TO ENERGY FACILITIES A Report for the Strategic Waste Infrastructure Planning (SWIP) Working Group Complied by WSP Environmental Ltd for the Government of Western Australia, Department of Environment and Conservation May 2013 Quality Management Issue/revision Issue 1 Revision 1 Revision 2 Revision 3 Remarks Date May 2013 Prepared by Kevin Whiting, Steven Wood and Mick Fanning Signature Checked by Matthew Venn Signature Authorised by Kevin Whiting Signature Project number 00038022 Report number File reference Project number: 00038022 Dated: May 2013 2 Revised: Waste Technologies: Waste to Energy Facilities A Report for the Strategic Waste Infrastructure Planning (SWIP) Working Group, commissioned by the Government of Western Australia, Department of Environment and Conservation. May 2013 Client Waste Management Branch Department of Environment and Conservation Level 4 The Atrium, 168 St George’s Terrace, PERTH, WA 6000 Locked Bag 104 Bentley DC WA 6983 Consultants Kevin Whiting Head of Energy-from-Waste & Biomass Tel: +44 207 7314 4647 [email protected] Mick Fanning Associate Consultant Tel: +44 207 7314 5883 [email protected] Steven Wood Principal Consultant Tel: +44 121 3524768 [email protected] Registered Address WSP Environmental Limited 01152332 WSP House, 70 Chancery Lane, London, WC2A 1AF 3 Table of Contents 1 Introduction .................................................................................. 6 1.1 Objectives ................................................................................ -
Measuring and Moderating the Water Resource Impact of Biofuel Production and Trade
Measuring and moderating the water resource impact of biofuel production and trade By Kevin Robert Fingerman A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Energy and Resources in the Graduate Division of the University of California, Berkeley Committee in charge: Professor Daniel M. Kammen, Co-chair Associate Professor Margaret S. Torn, Co-chair Professor Michael H. O’Hare Professor David J. Vogel Spring, 2012 Measuring and moderating the water resource impact of biofuel production and trade © 2012 by Kevin Robert Fingerman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
A Critical Review of Water Purification Technology Appropriate for Developing Countries
Desalination and Water Treatment 54 (2015) 3487–3493 www.deswater.com June doi: 10.1080/19443994.2014.922309 A critical review of water purification technology appropriate for developing countries: Northern Ghana as a case study Michelle Thompson Institute of the Environment and Sustainability, University of California, 300 La Kretz Hall, Suite 300, Box 951496, Los Angeles, CA 90095, USA, email: [email protected] Received 15 January 2014; Accepted 14 March 2014 ABSTRACT A wide range of technologies are commercially available for water purification. However, not all of these technologies are suitable for use in rural, underdeveloped regions. Here, I present a systematic method for selecting the most appropriate technology for a particular community, using rural Ghana as a case study. In Ghana, over half of the population lives in rural areas, and two-thirds of these residents lack access to safe drinking water. Ghana has made significant strides using innovative water treatment techniques; however, there are still many hurdles. Simple and inexpensive, on-site water filtration technologies are a promising method for removing protozoans and other micro-organisms that pose significant health risks in underdeveloped, rural areas. In this review, several of these commercially available on-site water filtration technologies are assessed based on the following factors: effectiveness, cost, energy consumption, environmental impacts, and waste generated. This ® analysis suggests that for rural communities in Ghana, LifeStraw and ceramic clay pots are the most appropriate technologies. Implementation of these technologies poses potential benefits in terms of cost effectiveness and economic growth. Although this paper focuses on northern Ghana as a case study, the methodology presented here can be readily extended to specific scenarios in other developing countries. -
Wastewater Treatment: Overview and Background
Wastewater Treatment: Overview and Background Claudia Copeland Specialist in Resources and Environmental Policy October 30, 2014 Congressional Research Service 7-5700 www.crs.gov 98-323 Wastewater Treatment: Overview and Background Summary The Clean Water Act prescribes performance levels to be attained by municipal sewage treatment plants in order to prevent the discharge of harmful wastes into surface waters. The act also provides financial assistance so that communities can construct treatment facilities to comply with the law. The availability of funding for this purpose continues to be a major concern of states and local governments. This report provides background on municipal wastewater treatment issues, federal treatment requirements and funding, and recent legislative activity. Meeting the nation’s wastewater infrastructure needs efficiently and effectively is likely to remain an issue of considerable interest to policymakers. Congressional Research Service Wastewater Treatment: Overview and Background Contents Introduction ...................................................................................................................................... 1 Federal Aid for Wastewater Treatment ............................................................................................ 1 How the SRF Works .................................................................................................................. 2 Other Federal Assistance ..........................................................................................................