Archive for August, 2011

An 8 Million Ton Problem

Dr. B. Sengupta recently sat down with Sarita Gupta to talk about India’s growing toxic waste problem – by his count, India generates over 8 million tons of toxic waste every year but only has the capacity to deal with half of that amount.

He should know. For 30 years, Dr. Sengupta worked at the Indian government’s Central Pollution Control Board.  Now, as Blacksmith’s technical advisor in India, Dr. Sengupta is helping us with our pollution cleanup efforts in the country.

I am reproducing Sarita’s post below.  Sarita met Dr. Sengupta while in India doing research on nonprofits.  Sarita is a Blacksmith consultant and supporter.  Thanks, Sarita.

Tackling India’s Growing Toxic Waste

Ever wonder what happened to that old computer you junked or that dead car battery? Chances are they were transported thousands of miles to a developing country where poor people make a living from extracting lead and other metals from discarded items. Recycling e-waste might be economically productive but exacts a huge environmental and health toll when toxins and heavy metals are dumped improperly, often right in the same communities as the workers. The result is millions plagued with disease, disability and death.

I recently became involved with the Blacksmith Institute, a nonprofit that is removing poisons from contaminated playgrounds, schools, homes and factories as well as large river systems and entire communities in the developing world. Blacksmith focuses on pollution that is acute and geographically confined as opposed to say, carbon emissions. The effects of this type of pollution are generally immediately felt and related to identifiable causes like pesticide runoff. They can usually be addressed at local or national levels.

During a trip to India last month, I met with Blacksmith’s national technical advisor, Dr. B. Sengupta. India has hundreds of thousands of poor people engaged in recycling e-waste and lead batteries. Add to that the numbers engaged in dyeing fabric or tanning leather or working in small smelters. In the US strict government regulation and monitoring would prevent a business from dumping toxins improperly. But in India, said Dr. Sengupta, anti-pollution laws exist mainly on paper. Instead of a few mega corporations as found here, India has over five million small and mid-sized industries, making monitoring virtually impossible.

According to Dr. Sengupta, India produces over eight million tons of toxic waste every year. The Indian government in the last 25 years has built 28 facilities for the proper transport, storage and disposal of toxic waste. These facilities however have the capacity to only handle one-half of the total.

The result is a four million ton problem that only promises to get worse with industrialization and population growth.

The Indian government to its credit is trying to address the problem. The Ministry of Environment & Forests has been allocated a significant amount in the current Indian budget to remediate polluted sites and the World Bank has stepped in with additional monies. Along with resources, there is strong expertise in India regarding pollution. However no complex remediation projects have yet been implemented and there is a dearth of state-of-the-art technical expertise and trained personnel to do so.

Enter Blacksmith Institute. The organization brings the best scientific practices from around the world and the latest and most cost-effective technologies to each project. It has a roster of senior experts with environmental health and engineering experience to address specific toxins and develop the appropriate remediation plan. The Ministry has invited Blacksmith to assist in site identification and the development of detailed remediation plans. It is a case of what I call ‘optimal collaboration’ between developed world expertise advancing the agenda of a developing government committed to resolving its own problems.

Dr. Sengupta, who retired after 30 years of executive positions at the Central Pollution Control Board (akin to our EPA), is optimistic about India’s future. The good news here, he says, is that toxic pollution can be cleaned up and stopped through regulation, community education and proven alternative and modern technologies. He is willing to battle killer heat, indifferent bureaucrats and strenuous travel to continue his lifelong quest of making India’s environment safer and healthier. Just don’t get him started on India’s sewage problem.

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“Miracle” Mercury Recapturing Machine

Low-cost retort for recapturing mercury

This is what I like to call our “miracle” mercury recapturing machine.

Using simple, low-cost retorts like the one pictured here, Blacksmith has been able to reduce the amount of toxic mercury released into the atmosphere by an estimated 4,000 kg. This is just in 2010 alone, from our work in one mercury hotspot – Indonesia.

The mountains of Central Kalimantan in Indonesia contain as much gold as the United States. Artisanal gold mining is the main source of income here, and also one of the main sources of toxic mercury in the world.

Blacksmith has identified mercury as one of the Top Six Toxic Threats, and recent reports have pointed to a huge increase in toxic mercury exposure in the U.S.

Over the past two years, Blacksmith has been working with local Indonesian NGO Yayasan Tambuhak Sinta (YTS) to distribute over 50 low-cost mercury retorts, which can recapture as much as 97% of the mercury released by miners and gold shop owners to extract gold from ore.

Blacksmith program manager Meredith Block was recently in Indonesia and this is what she told me:

We spent one week traveling through the region on foot and by car to reach villages and mining camps in five districts. The mountains are full of gold and people are spread out over a huge area with pockets of gold mining in very remote regions.

In each place we visited, we were delighted to find that many miners and gold shop owners were using the equipment we distributed earlier, and we made plans to fix retorts that were not working or installed properly.

The miners told us they were happy that the retorts were saving them money since they used to spend about US$60 a kilo on mercury. Now they are able to reuse the recaptured mercury.  This economic incentive is important because artisanal gold mining is their main source of income and convincing them to stop mining would have been difficult. The retorts offer a fast solution to reducing mercury.  And the villagers were all starting to notice the results -  cleaner air.  They were feeling healthier.

* Note: The recovery of 10,000 kg of mercury has an economic value of about US$83,333 (Rp. 7.5 billion)

Our visit also took us into urban areas and towns where gold shops are concentrated.  This is where miners take their gold and ore to be sold. Mercury released by the gold shops pose a bigger danger because they are located in towns with bigger populations and near markets where food can be easily contaminated with toxic mercury fumes.  So I was glad to find that at every gold shop I visited, there was at least an inch layer of mercury in the retorts they were using. It was clear that the retorts were working, and they could see it too.

Because of this measurable success, we will be expanding our work to reach more villages and towns. We will be working to convince the hold-outs to use retorts their neighbors are already using, and to reach areas we have not visited before to raise awareness about the dangers of mercury poisoning and the availability of these  retorts.  Most of all, we were encouraged by requests for retorts that were coming our way unsolicited, which means word of mouth is spreading.

Also see All that Glitters and watch videos of Indonesian gold miners

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