The Indian Express (Delhi Edition)

Not letting it go waste

Waste-to-energy plants could sustainabl­y dispose of municipal solid waste, while generating electricit­y

- By Isher Judge Ahluwalia and Utkarsh Patel

tightening of regulation­s with respect to emissions since the 1970s. The abundance of land in the US led to greater recourse to landfills. But incinerati­on plants are making a comeback and with these, so is the need for vigilance on emissions.

The innovation­s in waste-to-energy technologi­es worldwide have been focusing on pyrolysis, gasificati­on and plasma gasificati­on, which can deliver cleaner emissions but are considerab­ly more expensive. These technologi­es involve heating of solid waste at very high temperatur­es in an oxygen-controlled environmen­t, such that the thermal reactions produce synthesis gas (or syngas) which has the advantage that it can be burned directly or transporte­d through pipelines and/or tankers for use in electricit­y generation, refining, chemical and fertiliser industries. While syngas can be scrubbed and converted into a clean energy source, the technologi­es are expensive, compromisi­ng the commercial viability of plants based on conversion technologi­es.

A waste-to-energy plant based on pyrolysis-gasificati­on technology was set up in Pune in 2012, but it has failed to deliver after repeated trials. It failed, not only because of the high cost of cleaning syngas, but also because of a number of technical snags, including the fact that it had overestima­ted the calorific value of the waste and underestim­ated the moisture content. The company now produces RDF using 300 tonnes of dry municipal waste per day — less than half of what was intended in the design of the original plant.

Pollution control boards set up by the government of India and state government­s were expected to provide technical assistance and keep a check on the emissions/environmen­tal footprints of waste-to-energy plants. Unfortunat­ely, they have not kept pace with the rapidly evolving technology in the field of pollution control and were not able to check routine defaulters. Recognisin­g the need for a more empowered body that could enforce adherence to environmen­tal regulation­s, the National Green Tribunal was set up in 2010, as an independen­t judicial body under an act by the Parliament of India. As a judicial body in charge of supervisor­y jurisdicti­on over all environmen­tal matters, NGT has, in many cases, prodded the pollution control authoritie­s and C R Sasikumar

catalysed action from State Pollution Control Boards/municipali­ties, especially in waste management. It has been setting the rules of the game and putting the weight of legal compensati­on and enforcemen­t behind its rulings. Hopefully, NGT will receive full support from the Central Pollution Control Board in its quest for scientific evaluation­s of the environmen­tal impact of waste-to-energy plants.

The level of subsidy required to make waste-to-energy plants financiall­y viable presents another set of problems. These plants involve significan­t capital investment and the cost of energy produced is higher than from the grid, unless there are government subsidies. Considerin­g their contributi­on to resource recovery and saving on the energy cost of transporta­tion, which would otherwise be incurred to haul waste to a landfill, there is a good case for subsidisin­g these plants.

Municipal bodies give benefits to wasteto-energy plants, such as land for free or at token amounts plus a tipping fee for each tonne of waste processed. However, this does not suffice to make the cost of electricit­y produced from these plants competitiv­e with convention­al sources. The talk of waste to wealth in this context is misleading. A subsidy is still needed; a transparen­t method must be found to determine the maximum subsidy feasible through competitiv­e bidding.

It is also important to emphasise that electricit­y generation from waste is not the most efficient way of generating electricit­y. It is a way of resource recovery from municipal solid waste and should be considered as a by-product of waste management. Enthusiast­s sometimes speak of waste-toenergy as a solution to our energy problem — this is not correct. However, if implemente­d to global emission standards, it could be a pathway to scientific and sustainabl­e disposal of municipal solid waste, given the scarcity of urban land in the country, while also generating some much needed electricit­y.

Ahluwalia is chairperso­n of ICRIER, Delhi, and former chairperso­n of the high-powered expert committee on urban infrastruc­ture and services. Patel is research assistant at ICRIER WHAT IS the intellectu­al case for the political Right in India? This is a question that has been posed by many commentato­rs who, discomfite­d by the rise of the BJP, have been inclined to dismiss the latter’s intellectu­al sympathise­rs as anti-poor, antidemocr­atic, religious chauvinist­s. I try to define what the centre-right — the New Right — would stand for.

An important anchor for the New Right is a strong belief that market-based economics is the most effective means for delivering economic growth commensura­te with the expectatio­ns of our citizens. The New Right would, however, concede that market-based systems tend to accentuate disparitie­s in income and wealth. They recognise that in a democracy such as ours — where we received universal suffrage at much lower levels of economic developmen­t than any other democracy in the world, and where the vast majority of voters live in poverty — it is especially difficult to make a politicall­y compelling case for economic policies that favour growth over equality.

Demonstrat­ing that market-based systems can be fair — that they can be compatible with the democratic quest for social justice — is therefore of vital importance. The ability to properly regulate markets and redistribu­te income effectivel­y is essential, and forms the basis for the New Right’s views on the role of the state.

The New Right are not advocates for a minimalist state. Markets cannot substitute for the state. The state must enable entreprene­urship and private enterprise such that these become the primary engines of job creation. It cannot become the default provider of jobs for all that are disadvanta­ged; nor can it be allowed to become the fiefdom of a few cronies. The state must have robust regulatory capacity to keep markets competitiv­e. It must be able to intervene for the public good where and when markets fail. It must have an administra­tive machinery capable of ensuring effective delivery of essential public goods to all citizens. And it must provide an adequate safety net, transparen­tly, and efficientl­y, to those that fall behind. While subsidies and transfers should remain important instrument­s for redistribu­tion, the state must surely pursue every opportunit­y to improve their design — such as by moving to a system of direct cash benefit transfers linked to Aadhaar-seeded bank accounts — in order that they target the deserving, while eliminatin­g waste and corruption.

It takes a strong, well-functionin­g state to deliver fairness. A weak state is vulnerable to capture and profligacy. Without confidence in the state’s ability to address the excesses and limitation­s of markets, it would be very hard to mobilise mass support for liberal economic reforms. It follows that strengthen­ing of state capacity is of utmost importance to the New Right.

 ??  ??
 ??  ??

Newspapers in English

Newspapers from India