1 August 2011Retailer Woolworths has installed a water treatment system that uses water from a stream under its Cape Town head office to flush the toilets and run the building’s car wash, entrance fountain and cooling towers for the air conditioning units.The development will save the Cape Town municipality an estimated 27 375 000 litres of water a year or 75 000 litres of municipal water a day, while the retailer will benefit from a reduced water bill.The underground water runs about 20 metres under Woolworths head office building in the centre of Cape Town. The water currently flows into the city’s storm water system, and is eventually discharged into the sea. After much inquiry, the source of the underground stream is still somewhat of a mystery.Woolworths’ head of engineering services, Alex Kuzma, said the company had started investigating the project three years ago, and after consulting with the municipality and a range of experts had realised they could harvest the underground water, treat it, and use it instead of municipal water.“Everyone wins – Woolworths, the City of Cape Town, residents, and importantly, the environment,” Kuzma said in a statement last week. “This is part of our ‘Good Business’ journey, which helps to conserve natural resources and conduct business as responsibly as we can.”Reverse osmosisThe treated water is completely safe for use even though it will not be used as drinking water. To make the water safe for drinking, Woolworths has invested in a treatment plant that purifies the water using a number of steps including reverse osmosis.Under that process, pressure pushes the underground water through a semi permeable membrane. The membrane, which is about as thick as cellophane tape, allows only the water to pass through, eliminating impurities or contaminates.Drinking water will continue to be channelled separately into the building for the 2 000 people who occupy it daily. Once the treated water has been used, it will exit the building into the municipal waste water system.“The conservation and management of water is a major focus area of our Good business journey programme, as it should be in a country where water is a scarce resource,” said Kuzma.Woolworths’ Good business journey is a comprehensive plan to make a difference in in the areas of transformation, social development, the environment and climate change.SAinfo reporterWould you like to use this article in your publication or on your website? See: Using SAinfo material
A cluster of villages in central Assam’s Nagaon district has found a way of keeping crop-raiding elephants off their crops — by setting aside land to create a meal zone for them.Most farmers of 12 villages in the Ronghang-Hatikhuli area of central Assam’s Nagaon district do not have enough land to sustain their families. But they donated 203 bighas (roughly 33 hectares) of community land and took turns to plant paddy exclusively for the elephants that often come down the hills of the adjoining Karbi Anglong district.‘Jumbo kheti’The “jumbo kheti (cropland)” has been envisaged as the last line of mealy defence against some 350-400 elephants that have often paid for venturing too close to human habitations. Five of them were electrocuted by illegal electric fences in the last 16 months while half a dozen, injured by spears and arrows, died in the jungles up the hills.About 10 km from the paddy field, toward the hills, is an 8-hectare plantation of Napier grass that 35 reformed hunters have grown for the elephants. This plantation is on land belonging to a tea estate.The locals have also planted saplings of 2,000 outenga (elephant apple), 1,500 jackfruit and 25,000 banana plants on barren land between the paddy field and grass plantation. The three-step plantation has a common thread — environmentalist Binod Dulu Bora and the NGO Hatibondhu, meaning ‘friends of elephants’, he is associated with.“Growing paddy for elephants was the idea of Pradip Kumar Bhuyan, the director of our NGO. We had several meetings with the villagers and managed to convince them by saying they would be setting an example for the world to follow toward reducing man-animal conflicts,” Mr. Bora told The Hindu on Monday.Feeding patternOnce convinced that the experiment would save much of their crops, the villagers decided to donate land and labour to grow paddy for the elephants. Forest Department officials chipped in to provide solar electric fences around the crop area.“Work on the paddy field began less than two months ago. The fence will be withdrawn once the paddy ripens for the elephants to feed on. By mapping the area and studying the feeding pattern, we calculated that the elephants would take 20-22 days to finish the paddy in their demarcated zone,” Mr. Bora said.The nearest fields where the villagers have grown crops for themselves and for trade are 5 km away. “By the time the elephants finish the crop grown for them, we will have harvested much of our own. We think the elephants will turn back if they don’t find crop in our spaces,” said Dyansing Hanse, one of the two village headmen.The Ronghang-Hatikhuli area is inhabited by the Karbi and Adivasi communities.“The fruit trees will take time to grow. But the elephants can feed on the Napier grass, a tropical forage crop that grows fast, if they return to the hills. They have already partaken of the grass six times,” Mr Bora said, adding that 35 hunters who had given up hunting four years ago have been maintaining the grass plantation. ‘Unprecedented’Jiten Kro, the other headman said the villagers had been living in dread of the elephants for years. He hoped the experiment would go a long way in ensuring co-existence with the animals. “We are happy to have given back some space to the elephants through a project that I believe is unprecedented,” he said.
New Delhi: A fire broke out at the teaching block of the AIIMS here on Saturday, destroying samples and medical reports and forcing evacuation of some patients, though no one was injured, officials said.Patients from some floors of the AB ward, close to the Microbiology department where the blaze started at around 5 pm, were evacuated along with those in operation theatres above it as the smoke spread, they said, adding the fire was doused within two hours. Also Read – India gets first tranche of Swiss bank a/c detailsA Delhi Fire Services Department (DFS) official said 22 fire tenders were rushed to the site after they received a call. The Microbiology department’s virology unit on the second floor of the teaching block has been completely gutted, sources said. Former finance minister Arun Jaitley is admitted at the Intensive Care Unit (ICU) of the cardio-neuro centre, housed in a different building in the complex. Delhi Chief Minister Arvind Kejriwal tweeted, “I appeal to everyone to maintain calm and allow the Fire Services personnel to do their work.” Also Read – Tourists to be allowed in J&K from ThursdayA fire department official said there was no casualty in the blaze. Dark plumes of smoke and flames were seen billowing out from the affected building of the premier health institute. Sources said the fire spread to the Emergency Lab in the department of Lab Medicine, which is adjacent to the Microbiology department’s virology unit, where electricity work was going on for some time and cable and wire being used were kept, they said. The fire moved down to the first floor – and also upward to the third and the fourth floor of the building, they said. Some parts of the fifth floor were also affected, they added. “The fire was brought under control within two hours,” said a fire department official. Patients’ samples come to the virology unit and Lab Medicine department for testing. Sources said it is suspected that a large number of samples and patient records have been destroyed as the virology unit has been completely gutted. However, there were no casualties and the cooling process is underway, a fire department official said.