According to most countries practice, including China, and to comply with local/national environmental regulations, citizens are encouraged to collect the garbages or wastes produced in their household/offices and/or workplaces in a segregated mode as per the following four types and using separate and distinct colour coded garbage receptacles or Bins:-
1. Kitchen Waste
2. Recyclable waste
3. Harmul Waste
4. Other Waste
Green coloured Bins are used for collection of "kitchen wastes".
Blue coloured Bins are used for collection of "recyclable wastes" like waste papers, used plastic or Glass bottles, used cans, used/broken utensils etc.
Red or Orange coloured Bins are used for collection of "harmful wastes" like used battery, used light bulbs, used electronics equipments, used/expired medicines, used aerosol cans, used compressed gas bottles, used paint cans or paint brushes etc.
Dark Brown or Black coloured Bins are used for collection of "other Wastes" like used clothing, used nappies, cigarette butts, soiled papers etc.
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probably its proper disposal of garbage
Waste to Energy Conversion is when you take waste (the combustible parts of household garbage, for example, that cannot be otherwise recycled) and burn it to run an electricity generator. Then you have used waste to make energy.
Garbage must be handled properly to prevent the spread of disease, reduce vermin, and minimize odors. Garbage treated through a garbage disposal must be properly vented, macerated and rinsed in order to prevent backup in the sink drains and into the dishwasher (if one is present). Food waste and food containers are tremendous sources of odors and are extremely attractive targets for rats, mice, pigeons, ants, and other disease carriers.
It stimulates the economy and expands business. it creates employment provides business with a ready market where it can channel its product in bulk reduces level of waste or garbage
sanitary engineering is made for the purpose of helping the medical practitioners in preventing communicable deseases like malaria, dengue propagation of rats rodents and other insects. management of garbage and waste in the community.