1 Waste Disposal and Management

2 What are Wastes? Definition: outputs of a system that are nonuseful substances or objects which are disposed of or are intended to be disposed. Disposal means “any operation which may lead to resource recovery, recycling, reclamation, direct re-use or alternative uses (Annex IVB of the Basel convention)”

3 Classifications of Wastes Solid wastes: plastics, styrofoam containers, bottles, cans, papers, scrap iron, and other trash Liquid Wastes: domestic washings, chemicals, oils, waste water from ponds, manufacturing industries and other sources Bio-degradable: can be degraded (paper, wood, fruits and others) Non-biodegradable: cannot be degraded (plastics, bottles, old machines, cans, styrofoam containers and others) Hazardous wastes: Substances unsafe to use commercially, industrially, agriculturally, or economically that are shipped, transported to or brought from the country of origin for dumping or disposal Non-hazardous: Substances safe to use commercially, industrially, agriculturally, or economically that are shipped, transported to or brought from the country of origin for dumping or disposal

4 Sources of Wastes Municipal: Households (~60%) Commerce and Industry (schools, hospitals, etc) (~40%) The Story of Stuff

5 Sources of Wastes Agriculture Fisheries

6 Waste Generation by Country (Global Waste Survey Final Report Published by IMO 1995)* CountriesAmount /year Japan395 M tonnes/year Germany104 M tonnes/year Netherlands6.1 M tonnes/year Hungary102 M tonnes/year Poland130 M tonnes/year Romania607 M tonnes/year Bahrain92,000 tonnes/year China6 B tonnes/year Philippines1.3 M tonnes/year *from primary and secondary industry sectors

7 EFFECTS OF WASTE IF NOT MANAGED WISELY Affects our health Affects our socio-economic conditions Affects our coastal and marine environment Affects our climate

8 EFFECTS OF WASTE… According to NAS: Greenhouse gases are accumulating in Earth’s atmosphere as a result of human activities, causing global mean surface air temperature and subsurface ocean temperature to rise. Rising global temperatures are expected to raise sea levels and change precipitation and other local climate conditions. Changing regional climates could alter forests, crop yields, and water supplies. This could also affect human health, animals, and many types of ecosystems. Deserts might expand into existing rangelands, and features of some of our national parks might be permanently altered.

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10 WHAT SHOULD BE DONE Reduce Waste  Reduce office paper waste by implementing a formal policy to duplex all draft reports and by making training manuals and personnel information available electronically. - Improve product design to use less materials. - Redesign packaging to eliminate excess material while maintaining strength. - Work with customers to design and implement a packaging return program. - Switch to reusable transport containers. - Purchase products in bulk.

11 WHAT SHOULD BE DONE Reuse - Reuse corrugated moving boxes internally. - Reuse office furniture and supplies, such as interoffice envelopes, file folders, and paper. - Use durable towels, tablecloths, napkins, dishes, cups, and glasses. - Use incoming packaging materials for outgoing shipments. - Encourage employees to reuse office materials rather than purchase new ones. Donate/Exchange - old books, clothes, etc. - old computers and technology ( - excess building materials - old equipment to local organizations

12 WHAT SHOULD BE DONE RECYCLE: Closed loop recycling- recycling of a product into the same product Open loop Recycling- one product recycled into a new product

13 Sanitary Landfills Leachate Production of methane (CH4) Landfill construction animation

14 Handling hazardous wastes Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) – Superfund Act : Highest risk sites to human health ie. Love Canal, NY Brownfields – contaminated industrial and commercial land sites, that are not considered for Superfund, but may require clean up before they can be redeveloped or expanded.