MODULE 5 Waste Managment

Name all the types of wastes

Hazardous, Chemical, Industrial, Municipal, Agricultural, demolition, mining

What is MSW. How much do americans produce each day per capita

Municipal solid waste. Consists of residual waste produced on a day to day basis. Americans produce 1.4-4.5 kg/cap-day

How much do European countries procude each day per cap? and why?

0.7 kg cap-day due to less space for landfills.

What are ways to deal with MSW?

landfills banned, recycling program, spreading awareness about the issue, better packaging, technology to reuse materials

What are treatement strategies for MSW? (3)

Sanitary landfills, Incineration (burning), composting

Explain sanitary landfills

60% of waste goes there, and they are engineered systems, waste get compacted and buried

Explain Incineration

Burning of waste at high temperatures with O2 but it is volatile

Pro and cons of incineration

Pros: kill bad chemicals, good volume reduction, easy when space is limited

Cons: metals aren’t destroyed, expensive, generate soot, dioxins, furans

Explain Composting

Aerobic biological process whre microorganism decompose organic carbon/wasteinto CO2 into the soil/water

What does resource recovery mean

A way to reduce waste by not generating it in the first place. reduce volume by 1/3

Ways to resource recorvery (2)

manual sorting and comlpex automated process

What is the role of conservation? (3)

keep waste generation low, design for environment, think about life cycle

what is rule 3 of 1993 Enquete Commission

Don't use more resources than nature can handle

what is rule 4 of 1993 Enquete Commission

Don't damage nature faster than it can recover.

what are Hazardous wastes? name the 4 different types

subset of solid waste, require special landfills/prior disposal treatment. Igniteability, corrosivity,toxicity, reactivity

What are superfund sites

abandoned disposal sites that are very dangerous to environment. Passed the point on scoring system

What is PFOA

Perfluorooctanoic acid and it is hazardous