solid and liquid waste

7/28/2019 Solid and Liquid Waste

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Solid & Liquid Waste

Management Navya Shilpa

Aravind

Vineed

Venu

Jose

Rijo


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INTRODUCTION

Waste isany material which is not needed by theowner, producer or processor.

Classification:-

Domestic wasteFactory wasteWaste from oil factory

E-wasteConstruction wasteAgricultural wasteFood processing wasteBio-medical wasteNuclear waste


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Waste management is

the collection, transport, processing or disposal,

managing and monitoring of waste materials

The process is generally undertaken to reduce wastes

effect on health, the environment or aesthetics

Waste management is a distinct practice from resource

recovery which focuses on delaying the rate of

consumption of natural resources

All wastes materials, whether they

are solid, liquid, gaseous or radioactive fall within the

remit of waste management


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Waste Management Process


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Solid Waste Municipal solid waste (MSW), as trash or garbage is

a waste type consisting of everyday items that arediscarded by the public

Such wastes can be extremely variable in theircomposition, depending to a large extent on thelifestyle of the generator

Although these constitute a small portion of wastes

collected from households, they are particularlyproblematic due to their hazardous characteristic,variability in chemistry and associated high recoverycosts


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Liquid Waste Wastewater, is any water that has been adversely

affected in quality by anthropogenic influence

It comprises liquid waste discharged by domestic

residences, commercial properties, industry, and/oragriculture and can encompass a wide range of

potential contaminants and concentrations

It mainly refers to the municipal wastewater thatcontains a broad spectrum of contaminants resulting

from the mixing of wastewater from homes,

businesses, industrial areas and often storm drains,

especially in older sewer systems


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Household WasteWaste management is the collection,

transport, processing or disposal,managing and monitoring of waste

materials.


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Household Waste Post-consumer waste which qualifies

as hazardous waste when discarded

It includes:-

Household chem icals

Other substances


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Environmental Impacts of

Household Waste Air pollution

Potential health hazards

Loss of productive land due to the presence

of non-biodegradable items

Contamination of soil, ground and surface

waters


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Avoidance through source reduction

principle

Recovery of recyclable components

People involved in waste segregation

can be brought into the formal sector

Waste Avoidance and

Minimization


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Recovery problems

Lack of available sites for sanitary

landfill

Inadequate data on type and quantity of

waste generated

Separate collection and treatment of

liquid waste is expensive


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MunCIPALWASTE


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Municipal waste Municipal waste, commonly known as trash or

garbage, is a combination of all of a city's solid and

semisolid waste.

It includes mainly household or domestic waste, but itcan also contain commercial and industrial waste with

the exception of industrial hazardous waste

waste from industrial practices that causes a threat to

human or environmental health.


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Causes

The main sources for solid wastes are domestic,commercial, industrial, municipal, and agriculturalwastes.

The composition of a city waste is as follows:

- Paper, wood, cardboard 53 percent- Garbage 22 percent

- Ceramics, glass, crockery 10 percent

- Metals 8 percent

- Rubber, plastics, discarded textiles 7 percent The increase in the quantity of solid waste is due to

overpopulation, affluence, and technologicaladvancement.


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Depositing in grounds and no proper

cleaning


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Littering and illegal Dumping


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Unsatisfied street

containers


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Wrongly located street

containers


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Use of unsuitable vehicles


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The Indian Scenario

waste generated from

household60% are of

recyclable plastic (RP) and

40% are non recyclableplastic (NRP) according to

thepresent scenario.

he maximum net weight of

MSW was observed at site3(442.17 Kg/day), while as

minimum was observed at

site1 (55.92Kg/day).


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Delhi Highway


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Gorai, Mumbai on Creek and Mangroves


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Jawaharnagar, Hyderabad


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Waste management in Kerala

LocalGovernments Population2001

Per capitawaste

generation(g/day)

Waste generationper day (tonne)

2001 2006

5 CityCorporations 2456618 400 983 1091

53

Municipalities5810307 300 1743 1935

999 GramaPanchayats

23574449 200 4715 5312Total

7441 8338


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Effects

Health Hazard:If solid

wastes are not collected and

allowed to accumulate, they

may create unsanitary

conditions.

This may lead to epidemic

outbreaks.

Many diseases like cholera,

diarrhea, dysentery, plague,jaundice, or gastro-intestinal

diseases may spread and

cause loss of human lives.

Environmental Impact:

If the solid wastes are not

treated properly,

decomposition and

putrefaction may take place,

causing land and water

pollution .

when the waste products

percolate down into theunderground water

resources.


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Control Measures

The main purpose of solid wastemanagement is to minimize theadverse effects on theenvironment. The steps

involved are:- Collection of solid wastes

- Disposal of solid wastes

- Utilization of wastes

The method of collection,

transportation, processing,resource recovery, and finaldisposal should be synchronizedfor effective implementation.


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To further reduce waste, somecities are currently promoting

policies of zero waste.

Zero waste itself means

reduced waste generation and

the 100% diversion of the

remainder of waste from

landfills to productive uses via

materials reuse, recycling,

repair and composting.

Zero waste products should also

have minimal negative

environmental impacts over

their lifecycles

solid and liquid waste

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