A Less Boring Discussion On Everything About Waste Management - barefoot farmbooks

So Lonely!

We hear about waste management to and fro, right?

But you don't consider thinking of this a bit.

Neither did I before I really learned about it and about what really this can do. moreover, what expensive technologies are employed to do a task that I almost ignore every day!

You know about landfilling, recycling, composting etc.

But have you heard of anaerobic digestion, in-vessels, pyrolysis, UASB or waste autoclave?

Let's read from our fellow blogger Supritam Shome!

A Complete Study On Waste Management

Posted From The desk Of Supritam Shome

Supritam Shome
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to understand in-depth of waste management, we must start from the inception.

well, that is, obviously, what is a waste?

actually, that greyish black smelly thing can be defined as-

a material which arises from various activities of human, animals and also from different natural ↪ Yes! nature creates the most of wastes, but truly, they are not as harmful though! processes which are normally discarded as useless or unwanted.

Depending upon the physical states, these unwanted noxious elements are of 3 types-

1. Solid waste
2. Liquid waste
3. Gaseous waste

Let's dive deep into this.

1. Solid Waste:

let's not go like the orthodox's statement of a definition. heck! that really sucks while reading.

let's go point by point.

so, solid wastes are-

• discarded or leftover solids
• produced due to anthropogenic activities
• consists of highly heterogeneous mass(In case of glass, plastic containers, polythene or other packaging materials) or homogeneous material ( say, agricultural wastes or wastes like automobiles, machines, building or construction material)

Got it?

there are different forms of solid wastes though. like

• Municipal or household:

 Generally paper, food, plastic, sanitary residues, street wastes etc. these are handled by the municipalities.

Click here to check out an awesome complete article on Food Waste Management!

• Biomedical:

two terms, right? bio and medical. exactly what you are thinking off. the garbages ( if we say so) generated during diagnosis, treatment or immunization of humans or animals or for any research activities. these are crucial, so to say. these can be infectious or even cause death. they must be managed with care.

• Electronic or e-waste: 

this includes mainly mobile or computer parts that are no longer been used.  copper, silicon, iron etc. are the main composing metals of this kind. most of the developing countries like India, Pakistan import e-wastes from developed countries for excretion of this elements. well, poverty is helping out nature!
recycling can be the only suggestable management. if you want to get rid of, you can landfill them or incinerate.

heck Supritam! you've talked much of the wastes. I fell surrounded by them! how to abolish? _you might are thinking inside. let's jump straight to the solutions that I found most interesting ( at least less boring)

Management:

there is a thumb rule. you must take 3 golden steps ( I'm just trying to make it sound interesting. there is nothing golden in it honestly!)

1. Collection
2. Disposal
3. Recycling

(I told you there is nothing golden)

Remember, these steps are for solid wastes only.

Collection:

the most common method of collection is by covered trucks. to reduce collection cost and time following methods you'll need-

• A Community Garbage Point-

This is a fixed storage bin from where the waste collection agency can collect it for disposal in a vehicle.

• Kerbside collection-

Solid waste is brought in containers and placed on footway from where it is collected by the waste collection agency.

• Use of Garbage Grinders-

This also reduces the frequency of collecting, but, everybody cannot afford it which creates a problem.

• Pneumatic Pipe:

these are undergrounded. these pipes suck the solid waste.

• Compactors-

These are used to collect kitchen wastes

• Transfer stations-

Here the wastes are deposited temporarily for collection. this makes the process more systematic I guess.

Disposal:

Again some methods ill list according to my preference.

• Burning- Burning you know. But the burning of solid waste is not like that one. this is done mainly by the following two methods-

Incineration- It is controlled aerobic combustion of solid waste inside chambers of 850℃ to 1000℃.

Pyrolysis- it is the anaerobic combustion inside chambers of 1600℃

• Dumping- Dumping is pilling of wastes on selected low-lying land.

this is of 2 types-

Open Dumping-

• Done on uncovered low-lands
• wastes are periodically burnt
• this can lure rats and flies as this provides a suit for breeding to them.

Sanitary Dumping-

• wastes are dumped in a depression or trench after compaction
• these are covered with dirt every single day

𑗉𑗉A relative note on composting: It is a biological process where aerobic decomposition of organic matter by microorganisms into a nutrient-rich and stable material produced called humus. the main objective of composting is to convert a major portion of solid waste into marketable products𑗉𑗉

Recycling or Recovering from waste-

But why?

Two obvious reasons are-

1. To conserve resources
2. To reduce Volume of disposable refuse

 Some of the commonest materials rejected are paper, metal, glass and organics. Old paper cans, newspaper and other waste paper can be recycled to produce fresh paper or other useful materials.

2.Liquid Waste:

Well, the name suggests what it is.

it is the liquid part of the waste material. it includes different toxic solutions such as fertilizers, pesticides etc. from agricultural fields, domestic sewage, industrial effluent (like a Nuclear power plant) etc.

here too are different forms.

some categories in which we can classify liquid wastes are-

1. Domestic Sewage:

this is the most common of all liquid wastes. it generally includes biodegraded pollutants like human faecal material, animal wastes and many dissolved organic compounds like carbohydrate, protein, fats, urea etc.

𑗉🗟Another relative note:

• Suspended solids- sand, silt, clay
• colloidal material- faecal matter, cloth and paper fibres
• dissolved material- nutrients🗟🗟

1. Industrial effluents:

Unlike domestic sewage, wastewater from industries like- petroleum, paper and manufacturing metal extraction and processing, chemical manufacturing etc. often contains toxic substances, heavy metals

(Heavy metals are defined as the elements with a density greater than 5g/㎤) You can request the author to discuss density and heavy metals. click here to mail him.

1. Insecticides, pesticides:

These are biologically active chemical compounds used for pest control. (click here to mail author asking for further elaboration about pests and insecticides)

these include DDT, BHC, Copper sulphate, aldrin etc.

Want to know more how to control liquid waste and manage it effortlessly? click here to send an email asking your query and get premium content with a personal discussion for free!

3.Gaseous waste:

The last but not the least, Gaseous wastes.

I didn't know what a gaseous waste was.

practically, it is generated mainly due to human activities. gaseous wastes include different poisonous gasses like CO2 CH4 AFC Oxides of Nitrogen, Oxides of Sulphur, carbon monoxide, particulate matters (Aerosols, smoke, dusk, mist etc. More about Particulate matters? Click here and ask your question)

these causes serious environmental hazards. therefore, it is mandatory to take appropriate steps for the proper management and control. here they are-

Management:

1. Separation of pollutants from harmful gasses
2. Electrostatic Precipitation
3. Scrubber
4. Smokelessness
5. Complete control techniques for automobile exhaust

To avail, the full management procedure along with some extra point just send me an email saying- gaseous waste management. click here

Hope that helps you. Mail me-

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