WASTE
1. Definition
Waste is residue / trash that come from human activities.
2. It can be divided into 3 phases, there are:
a. Solid : sludge, dust, building construction residue, dead animal, wood, paper, plastic, glass.
b. Liquid : detergent, pesticide, crude oil, liquid waste from industry
c. Gas : CO, CO2, SO, NO, fumes from motorcycle and cars, industry’s fumes,
3. Classification based on toxicity levels
a. Dangerous And Poisonous Matter
Is a waste that contains dangerous, poisonous, and toxic substance. In a specific concentration dangerous waste can destruct our environment and it’s also very harmful for human. E.g : chemical substances, like benzene, sulphuric acid, carbon monoxide, and others.
b. Non Dangerous And Poisonous Matter
Is a waste that didn’t contains dangerous substance. E.g : organic garbage,
4. Sources
a. Domestic
It’s come from the rump/residue of the family activities. For example: spoiled vegetable and fruits, plastic can, and plastics bag
b. Agriculture
Come from residue from using the fertilizer, pesticide, residue of the plant’s part, likes, root, leaf, stem, and others.
c. Industry
Over all, industry’s waste is a dangerous waste. It’s need a certain processes before thrown to the environment.
WASTE MANAGEMENT
1. Definition
Waste management is a processes of collecting , transporting , handling , or recycle of waste materials
2. Principle
a. Reduce
When it comes to waste management, the best action we can take is to prevent waste from being created in the first place.
Reducing the amount of products we use means that fewer resources are consumed (including the fuel and energy required to manufacture, package and ship those goods), and fewer resources are required to recycle, or dispose of, what we discard. Reducing what we consume reduces the amount of garbage that litters the land and occupies space in community landfills. It also cuts down on the amount of transportation that is required to have our goods delivered to our communities, and for our recyclables to be shipped elsewhere to be transformed.
b. Reuse
Reusing things before we recycle or discard them is the next best way to decrease the amount of resources we consume, and the amount of waste we produce. Reusing offers similar benefits as reducing—we use less new materials, we transport less and we waste less.
c. Replace
Replace means that we change a synthetic thing with the organic one. For example changing Styrofoam with banana leaf to bring some food, changing plastics bag with shopping bag.
d. Recycle
When an item is recycled, it is broken down and physically or chemically altered in order to make a new item. This new item could be the same as its original form or it might be an entirely different product.
When a product is recycled into something of greater quality than its original form, it is called ‘upcycling’. Conversely, when a product is recycled into something of lower quality than its orignial form, it is called ‘downcycling’. A plastic bottle that is recycled into a fleece sweater would be an example of upcycling, while that same plastic bottle mixed with other plastics to make a lower quality plastic would be an example of downcycling.
Recycling, unlike reducing or reusing, is not considered waste prevention, since we still need to create waste before we can recycle it.
Recycling a material requires resources to ship and transform it into a new material. The manufacturer then turns it into a new product, and ships it to consumers. This can add up to a lot of shipping when you consider the remote location of the NWT and our reliance on manufacturers from elsewhere.
Making products from recycled materials is better than making them from virgin materials, but when possible, it is best not to create any waste at all.
3. Processes
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