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  • 7/29/2019 NCGET04

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    National Conference on Green Engineering and Technologies (NCGET 2011) 23-24 September 2011

    ISBN 978-81-910991-1-9

    21

    ELECTRONIC WASTE MANAGEMENT

    IN INDIA

    Babuponnusami.A, PalanivelMurugan.M, Suresh.A.KDepartment of Chemical Engineering, Adhiparasakthi Engineering College

    ababupo [email protected], [email protected],[email protected] - The current practices of e-waste

    management in India suffer from a number of

    drawbacks like the difficulty in inventorisation,

    unhealthy conditions of informal recycling, poor

    awareness and reluctance on part of the corporate

    to address the critical issues. Electronic waste or e-

    waste consists of obsolete electronic devices which

    are caused to the environmental change. The e-

    waste material which including iron, copper,

    aluminum, gold and other metals over 60%, while

    plastics account for about 30% and hazardouspollutants only about 2.7%(Widmer et al, 2005). In

    this paper contains what is the current scenario of

    e-waste management in India. The sources of the e-

    waste are IT and Telecom industries, large and

    small household appliances, electronic and

    electrical tools, medical devices, monitoring and

    control equipment. At the end of 2010, 500 million

    mobile users (80%), 80million computers (20%)

    over 15 million old PCs are ready to disposal and

    also TV (18%). Nowadays the e-waste disposal is

    done by unsafe method by manually informal

    recycling as lack of awareness. These are disposed

    with safety handling by the way of collecting and

    transportation, treatment and proper disposalsystem. The recyclers zone also involved in the

    disposal of e-waste management system. 2009 They

    are collecting e-waste from material recovery

    technologies. In country the recyclers are often

    handled open roasting, smelting and acid bath for

    getting useful component from e-waste. We can

    resolve the e-waste minimization by the

    optimization usage of electronic things and

    equipment in household and industry also. The

    paper highlights the associated issues and

    management of e-waste to emerge this problem, inthe light of initiatives in India.

    Keywords: obsolete electronic device, environmental

    change, sources of e-waste, material recoverytechnologies, optimization usage.

    1. INTRODUCTION

    E-waste is defined as the electronic

    equipment/products that connect with power plug,

    Batteries which have become obsolete due to

    advancement in technology, changes in fashion, style

    and status, near the end of their useful life. The

    electronic industry is the worlds largest and fastest

    growing manufacturing industry (RATHA 2002).The

    main problems of e-waste are the most rapidlygrowing. It is a crisis of not quantity alone but also a

    crisis born from toxics ingredients, posing a threat to

    the occupational health as well as the environment.

    The rapid technology change, low initial cost, high

    obsolescence rate have resulted in a fast growing

    problem around the globe, legal framework, proper

    collection system missing. Inhuman working

    conditions for recycling. The e-waste fraction

    including iron, copper, aluminum, gold and other

    metals over 60%, while plastics account for about30% and hazardous pollutants comprise only about

    2.7% (Widmer et al.., 2005). The classification of e-

    waste is shown in table 1.1.Mechanism of e-waste

    trade can be explained in terms of three elements.

    These elements are given below. Material flow

    along the Life cycle of electrical and electronic

    equipment including the phase of obsolescence within

    a Geographical boundary forms the basis of e-waste

    generation in cities/countries.

    1.1 Types of E-Waste

    Classification of

    e-waste

    Mobile

    phones

    Computer

    Printer Scanner

    CD Microwave

    Military

    electronics

    Cartridges

    Washing machine Automobile catalytic convertor

    Air conditioner Alarm and

    siren

    Security device Sensor

    TV Telecom

    Calculators Server

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    National Conference on Green Engineering and Technologies (NCGET 2011) 23-24 September 2011

    ISBN 978-81-910991-1-9

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    2. INDIANCURRENT SCENERIO ON E-WASTE

    PRODUCTION

    According to a report of Confederation ofIndian Industries, the total waste generated by

    obsolete or broken down electronic and electrical

    equipment in India has been estimated to be 1,46,000

    tons per year (Kurian Joseph,2007). The results of a

    field survey conducted in the Chennai, a metropolitan

    city of India to assess the average usage and life of the

    personal computers (PCs), television (TV) and mobilephone showed that the average household usage of the

    PC ranges from 0.39 to 1.7years, depending on the

    income class (Kurian Joseph, 2007). In the case of TV

    it varied from 1.07 to 1.78years and for mobile

    phones varied from 0.88 to 1.7years.

    The low-income households use the PC for

    5.94 years, TV for 8.16 years and the mobile phonesfor 1.63 years. Further, it is growing at a faster rate.

    The growth rate of the mobile phones (80%) is very

    high compared to that of PC (20%) and TV (18%).

    The public awareness on e-waste and the willingness

    of the public to pay for e-waste management as

    assessed during the study based on an organized

    survey revealed that about 50% of the public are

    aware of environmental and health impacts of the

    electronic items. The enthusiasm of public to pay for

    e-waste management ranges from 3.57% to 5.92% of

    the product cost for PC, 3.94% to 5.95% for TV and

    3.4% to 5% for the mobile phones. The e-waste

    production in Indian cities are shown in table 2.1

    Table 2.1: E-waste Production in Indian cities

    e-waste production cities in India Tonnes per

    annum

    Mumbai 50000

    Delhi 35000

    Bangalore 30000

    Chennai 20000

    Kolkata 19000

    Ahmedabad 14000

    Hyderabad 13000

    Pune 10000

    Indore 8000

    Source: CPCB annual report 2010.

    'There are 36,165 hazardous waste generating

    industries in the country. 6.2 million Tonnes of

    hazardous waste is generated by them every year, of

    which land fillable waste is 2.7 million tonnes,

    incinerable 0.41 million tonnes and recyclablehazardous waste is 3.08 million tonnes,' the ministrysaid. As per the hazardous waste (management,

    handling and trans-boundary movement) rules, 2008,

    all units handling e-waste need to register with the

    CPCB and the hazardous wastes generated should be

    given to an authorized recycler or re-user.

    Fig.1 Issues and Challenges in e-waste management

    3. E-WASTES MANAGEMENT

    The current practice on e-waste management in Indiawas not up to the level due to the various reasons as

    shown in Fig.1.

    E-wastes are currently managed in the following

    steps.

    1.E-waste collection and transportation system2.E-waste treatments system3.E-waste disposal system

    E-waste collection system consists of

    producer/retailer take back system. Since e-waste ishazardous in nature, it is collected, stored and

    transported under controlled conditions. Each of the

    agencies should have its own e-waste collection and

    storage centers. The collection methods will vary

    based on distance, rural or urban patterns and the size

    of collected appliances. Some categories will require

    specific collection routes like flatbed collection (for

    refrigerators and other reusable household

    appliances).

    3.1. TECHNOLOGY AVAILABLE

    Input: E-waste items like TV, refrigerator and

    PCs

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    National Conference on Green Engineering and Technologies (NCGET 2011) 23-24 September 2011

    ISBN 978-81-910991-1-9

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    Unit operations involved in first level of

    treatment

    Removal of all liquids and gases Dismantling (manual) Segregation

    Output:

    1. Segregated hazardous wastes like CFC, Mercury

    (Hg) Switches, CRT, batteries and capacitors.

    2. Decontaminated e-waste consisting of segregated

    non-hazardous e-waste like plastic, circuit board and

    cables

    3.2. POSSIBLE STEPS FOR DISPOSING E-

    WASTE

    Step 1: Determine e-waste trade value chain in a

    city/geographic region.

    Step 2: Determine existing and future item-wise e-

    waste inventory in a city/geographic region.

    Step 3: Determine item-wise e-waste quantities

    collected and segregated in informal/unorganized and

    formal/organized sectors.

    Step 4: The output of above step will give an idea of

    existing capacity of informal/unorganized and

    formal/organized sectors in e-waste treatment

    Step 5: Determine recovery quantities of items of

    economic value from existing e-wise quantitiestreated in informal/unorganized and formal/organizedsectors.

    Step 6: Determine existing item-wise e-waste fraction

    quantities disposed and disposal procedure using the

    data collected from survey.

    4. CONCLUSIONSolid waste management, which is a mammoth

    task in India, is becoming more complicated by the

    assault of e-waste, particularly computer waste. There

    exists an urgent need for assessment of the current

    and future scenario including quantification,

    characteristics, existing disposal practices,environmental impacts etc. Policies should include

    development of e-waste regulation, control of import

    and export of e-wastes. Take-back and exchange

    program can be followed for e-waste reduction. End-

    of life management should be made a priority in the

    design of new electronic products.

    5. REFERENCES

    [1] Central Pollution Control Board annual report

    (2010), India.

    [2] KuriyanJoseph,(2007) SardiniaEleventh

    International Waste Management and

    Landfill Symposium .[3]Ratha G. (2002). A Study of the Performance ofthe Indian IT Sector at www.nautilus.org accessed on

    21st June 2005.

    [4]Widmer R et al.,(2005)Global perspectives on e-

    waste.