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Opinion 15<br />

DT<br />

THURSDAY, SEPTEMBER 7, <strong>2017</strong><br />

Lay to waste<br />

How can we manage Dhaka’s overwhelming waste problem?<br />

Not good for the people<br />

• Shishir Reza<br />

Waste management in<br />

pre-industrial times<br />

was trouble-free, as<br />

most of the waste<br />

consisted of unrefined materials<br />

which decomposed naturally.<br />

With the change of<br />

consumption patterns, nonbiodegradable<br />

synthetic materials<br />

such as plastic have become one of<br />

the leading causes of marine and<br />

coastal pollution.<br />

The management of waste is<br />

one of the obligatory functions of<br />

urban governance institutions in<br />

Bangladesh. The yearly escalation<br />

in urban population of Bangladesh<br />

is over 3.3%.<br />

Population Division of UN<br />

(2016) has mentioned the urban<br />

population status in Bangladesh: It<br />

was 23.8% in 2000; 30.4 % in 2010,<br />

and it is 34.9% now. It can be 38%<br />

of the total population by the year<br />

of 2020.<br />

Waste generation has also<br />

augmented proportionately<br />

with the intensification of urban<br />

inhabitants. As such, innercity<br />

governing institutions are<br />

facing difficulties to keep up and<br />

ensure ample waste management<br />

services.<br />

Staggering numbers<br />

Approximately 250 industries<br />

discharge chemical effluents into<br />

urban water bodies. Each day,<br />

4,000 tonnes solid waste and<br />

22,000 tonnes tannery waste mix<br />

with water in four rivers of Dhaka<br />

city.<br />

Pollution in Dhaka city is mainly<br />

composed of 48% pulp and<br />

paper, 16% pharmaceuticals, 15%<br />

metals, 12% food industry, and 7%<br />

fertilisers/pesticides.<br />

In urban areas, waste is<br />

discharged directly into the rivers<br />

and low-lying parts around the<br />

urban areas. Disposal management<br />

of solid waste in the urban area is<br />

inadequate. Household garbage,<br />

industrial waste, and waste<br />

from clinics and hospitals are all<br />

dumped in the same place.<br />

The daily waste production in<br />

Dhaka city is about 3,000 metric<br />

tons, of which 40% is left on the<br />

streets.<br />

Nowadays, in Dhaka South<br />

City Corporation, 3,500 tonnes of<br />

waste are generated from which<br />

only 1,900 tonnes are processed.<br />

Although there are 1,000 street<br />

cleaners in the Dhaka City<br />

corporations, most of the streets<br />

are never swept.<br />

In addition, the generation<br />

of electronic waste -- such as<br />

television, refrigerator, computer,<br />

tube lights, and mobile phones<br />

-- has created a new threat for us.<br />

Environment and development<br />

organisations mention that during<br />

the period of 2011-12, it was five<br />

million metric tons and over<br />

2013-14, it was 11 million metric<br />

tons. The figures are on the rise in<br />

Bangladesh.<br />

Can anything save us?<br />

With the current practices in<br />

collection and transportation of<br />

solid waste in municipal areas of<br />

Bangladesh, the city corporations<br />

are faced with severe challenges<br />

to tackle the rapid deterioration<br />

of environmental and sanitation<br />

security.<br />

This results in unhygienic and<br />

filthy living conditions in urban<br />

The daily waste production in Dhaka city is about 3,000 metric tons, of<br />

which 40% is left on the streets<br />

Dhaka.<br />

With the multiplicity of<br />

environmental problems created<br />

by urban waste, now the question<br />

of governance regarding urban<br />

solid waste management is more<br />

imperative than ever.<br />

As an urban governance<br />

institution, the city corporation is<br />

primarily accountable to enforce<br />

existing policies in managing its<br />

solid waste through recycling and<br />

non-polluting disposal methods.<br />

In general, governance of<br />

waste management is essential for<br />

environmental security.<br />

Integrated waste management<br />

MAHMUD HOSSAIN OPU<br />

includes re-use, source reduction,<br />

recycling, composting, land-filling,<br />

and incineration.<br />

Better use of the 3Rs (reuses,<br />

reduce, and recycle) strategy can<br />

play a vital role to 100% waste<br />

reduction. In addition, largescale<br />

composting and recycling<br />

programs ensure 10% and 30%<br />

waste reduction.<br />

For liquid wastes and effluents<br />

disposal, we have to set up<br />

waste and effluent treatment<br />

plants in every red and orangecoloured<br />

factory, enlisted by<br />

the environment department<br />

following environmental laws and<br />

policies.<br />

For medical waste disposal,<br />

incineration would be feasible.<br />

As the heap of waste materials<br />

create odour pollution, the<br />

establishment of green buildings<br />

and related incentives would give<br />

confidence to take up recycledcontent<br />

materials and instruments<br />

at new construction sites.<br />

In urban areas, awareness<br />

about waste management, odour<br />

pollution, and impacts of effluents<br />

among people is urgent. •<br />

Shishir Reza is an environment analyst<br />

and Associate Member of Bangladesh<br />

Economic Association.

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