Significance of Solid Waste Management

Some countries have achieved considerable success in solid waste management. But the rest of the world is grappling to deal with its wastes. In these places, improper management of solid waste continues to impact public health of entire communities and cities; pollute local water, air and land resources; contribute to climate change and ocean plastic […]

Renewable Energy and Sustainability: Global Perspectives

Renewable energy resources come to us courtesy of natural reserves that can be recharged on a human timescale. They include energy obtained from the sun, wind, biomass, geothermal warmth, rain, tides, and waves. They are healthier and sustainable as compared to non-renewable resources, such as energy produced from coal, oil, gas, and nuclear sources. Sustainability […]

Management of Electronic Wastes

Electronic waste (or e-waste) is the fastest growing waste stream, and its disposal is a major environmental concern in all parts of the world, especially developing countries. More than 50 million tons of e-waste is generated every year with major fraction finding its way to landfills and dumpsites. In rich countries, e-waste comprises as much […]

Making Sense of Sustainability

Sustainability is a buzzword that people associate to in many ways. For some it is a state of self-actualisation, a fashion statement for few, some do it for regulatory purposes; whereas very few understand that it is key to survival. The capitalist world has been running a race to doomsday, and the day is not […]

Chasing Green in India

A consumer survey on people’s perceptions of green brands and corporate social responsibility shows that 64% of Indian consumers plan to spend more on green products. More importantly, nearly 48 % of Indian consumers said they were willing to spend over 10% more on a product simply because it is green. By defying what the consumer […]

New Delhi’s Tryst with Rubbish

Have you seen the several storeys high landfill in Delhi at its border with Uttar Pradesh – Gazipur, a prime land! It’s a mountain of garbage now. How does the garbage reach the landfill and what will happen when this place is all filled up? Does our food waste also contribute to our garbage mountains? May be we all […]

Biodiesel Industry in India

The biodiesel industry in India is still in infancy despite the fact that demand for diesel is five times higher than that for petrol. The government’s ambitious plan of producing sufficient biodiesel by 2011-2012 to meet its mandate of 20 percent diesel blending is unrealized due to a lack of sufficient Jatropha seeds to produce biodiesel. Currently,Jatropha occupies […]

Role of Waste-to-Energy in SWM

According to recent estimates, the rapid increase in population coupled with changing lifestyle and consumption patterns is expected to result in an exponential increase in global waste generation of up to 18 billion tonnes by year 2020. Ironically, most of the wastes are disposed of in open fields, along highways or burnt wantonly. Waste generation […]

Winter Smog – Causes, Impacts and Management

The recent winter smog in New Delhi was in the news worldwide. This year, the air quality during the winter hit a record low as per global standards which not only caused massive disruption in daily activities but also created a mass public health crisis with spike in patient population with asthma and lung and […]

Bioenergy Projects – Problems and Remedies

Biomass resources can be transformed into clean energy and/or fuels by thermal and biochemical technologies. Besides recovery of substantial energy, these technologies can lead to a substantial reduction in the overall waste quantities requiring final disposal. However, biomass energy projects worldwide are often hampered by a variety of techno-commercial issues. This article makes an attempt […]

Biodiesel Feedstock in India

Biodiesel is mostly produced from the oils extracted from the seeds of Jatropha. Apart from Jatropha, Pongamia pinnata, Mahua, Neem and Castor are also considered as good source of non-edible oil-based biodiesel. Jatropha is a genus of nearly 175 species of shrubs, low-growing plants, and trees.  However, discussions of Jatropha as a biodiesel are actually means a particular species of the […]

Global Trends in Cogeneration of Bagasse

Cogeneration of Bagasse is one of the most attractive and successful energy projects that have already been demonstrated in many Sugarcane producing countries such as Mauritius, Reunion Island, India and Brazil. Combined heat and power from Sugarcane in the form of power generation offers renewable energy options that promote sustainable development, take advantage of domestic […]

Solar Energy Around the World

The installation of new solar power has been increasing around the world every year. Some 15 countries, led by Bulgaria, Germany, Italy, Belgium and the Czech Republic, have been doing very well in terms of the most important measure, solar capacity per capita. Unfortunately, however, none of the five countries most responsible for CO2 emissions […]

Talking Green: An Interview with Vandana Shiva

I met Vandana Shiva in the airport. When the automatic sliding doors at the arrivals gate revealed her luggage cart and her orange sari, I half expected a beam of light to illuminate her, such is the legend that surrounds her. Of course none did because Vandana Shiva is just a human being and not a saint. […]

Rational Approach to Agricultural Waste Management

Traditional methods of farm waste management are unscientific and have several negative externalities associated with them. Being the emitter of stock pollutants, like CO, SOx, NOx, PAHs, and aerosols, which accumulates in the atmosphere, traditional practices have a regional impact apart from local damage. Crop burning decrease the fertility of soil. To meet increasing market demand […]

Cementatious Solidification of Medical Wastes

The most common cause for alarm in the medical field pertaining to waste disposal is the exposure of the worker to infectious wastes and contraction of diseases from these wastes. With the increased risk of exposure to blood borne pathogens in handling body fluids and disposal of items that have been tainted by these fluids, […]

Be a Part of Plastic Truth Challenge

Brands that use plastic packaging ship their products to high, mid and low income countries. They export their plastics to countries that have recycling infrastructure as well as to countries that do not have the means to deal with the plastic waste. Plastic waste is a major problem in our world, because current plastics are […]

Renewable Energy Potential in India

Renewable energy is growing rapidly in India. The Indian Ministry of New and Renewable Energy (MNRE) estimates that there is a potential of around 90,000 MW for power generation from different renewable energy sources in the country, including 48,561 MW of wind power, 14,294 MW of small hydro power and 26,367 MW of biomass. In […]

Energy Partnership in South Asia

South Asia has an interesting mix of countries displaying diversity in terms of natural resources, landscape, per capita income, culture, happiness index, etc. On the energy front all these countries today are facing a multitude of challenges in meeting their rapidly growing requirements in a sustainable manner. While governments of each of these countries have […]

Anaerobic Digestion and Rural Development

The rural population of developing countries exhibit unique resource optimization capabilities as compared to urban populations. Tracts of land are cultivated and cattle are reared and the produce is sold off in the market or consumed. The wastes generated from crop cultivation and rearing animals are also utilised domestically. While the dung of animals is […]

Garbage Woes in India

An American produce 2.1 kg of garbage per day against 0.6 kg for an Indian, according to a 2009 study by the National Sanitary and access to water-governmental organization, the CPHEEO (Central Public Health and Environmental Engineering Organization ). Yet the country with a total of 1.2 billion people takes the cake in terms of volume of […]

Natural Gas: A Feasible Alternative to Diesel Fuel

Our dependency on fossil fuels has become a hotly debated topic over the past few years, and many industries are now turning to alternative fuels in an effort to protect the planet from harmful emissions. Natural gas has emerged as a forerunner in the field of alternative transportation fuels, and many drivers, both commercial and […]

Wastes from Leather Tanning

Tanning refers to the process by which collagen fibers in a hide react with a chemical agent (tannin, alum or other chemicals). However, the term leather tanning also commonly refers to the entire leather-making process. Hides and skins have the ability to absorb tannic acid and other chemical substances that prevent them from decaying, make […]

Biogas from Leather Industry Wastes

The conventional leather tanning technology is highly polluting as it produces large amounts of organic, inorganic and other types of harmful pollutants. Wastes generated by the leather processing industries pose a major challenge to the environment. According to conservative estimates, about 600,000 tons per year of solid waste are generated worldwide by leather industry and […]