Naveen Menezes BENGALURU: Decentralised approach to treating sewage, rejuvenating lakes and harvesting rainwater have the potential to gener- ate a whopping 31 thou- sand million cubic (tmc) feet of water every year, which is much more than what the city needs, finds a latest study by researchers from the Indian Institute of Sci- ence (IISc), Bengaluru. The study was conducted by a team of scientists including senior researcher Ramachan- dra T V, Energy and Wetlands Research Group, Centre for Ecological Sciences, IISc, to assess the quantum of water available in the region to meet the domestic demand. The study largely banks on three key potentials: annual rainfall, sewage treatment and efficient rainwater harvesting system. “There is 30.85 tmcft of wa- ter available in the region an- nually to cater to the demand of Bengalureans, which is 20.05 tmcft. However, the city administration should opt for decentralised optimal water management,” Prof Ra- machandra notes. “Bengaluru records an av- erage annual rainfall of 787 mm and the total annual water yield is about 14.8 tmcft. The domestic demand of water is 20.05 tmcft per year (1,573 million litres per day - MLD). This means about 73% of Ben- galuru’s water demand can be met by efficient harvesting of rainwater,” the study points out. The quantification of sewage generated shows that about 16.04 tmcft (1,258 MLD) of sewage is generated in the city. The research paper notes that the sewage treatment with complete removal of nu- trients and chemical contam- inants can be achieved by con- structing decentralised treatment plants. It gives an example of a suc- cess model (secondary treat- ment plant integrated with constructed wetlands and al- gal pond at Jakkur lake). The study, however, ob- serves that this model of de- centralised harvesting of wa- ter and use of treated sewage is not an attractive proposition for the current breed of deci- sion-makers with a colonial style of functioning. The financial gain is much higher in the case of mega projects (such as water diver- sion) compared to these de- centralised models. This is the sole reason for the local ad- ministrators to degrade de- centralised water harvesting structures and alienate the lo- cal community, the research paper says. DH News Service Treat sewage, revive lakes, harvest rain to end B’luru’s water woes: IISc study ||||||||||||||||||||||||||||||||||||||||||||||| n Annual rainfall: 787 mm n Rainwater yield: 14.80 tmc/year n Sewage generated: 1,259 MLD - 16.04 tmc/year n Domestic demand: 1,573 MLD - 20.05 tmc/year ||||||||||||||||||||||||||||||||||||||||||||||| The potential
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4 DECCAN HERALD B Friday, October 14, 2016
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fered to school students fromclasses 1 to 12 and across allboards - state, ICSE andCBSE.
According to a statementto DH, the startup said:“Right now, we are focusingon Bengaluru and the servicecovers almost all major areasin Bengaluru.” While the rec-
ommendation/matchingservice is for free for stu-dents, a tutor has to registerand pay the licence fee toVidyanext for each of theirstudents.
Once a tutor registers onthe website, Vidyanext willverify the tutor’s location. Tu-tors are then asked to submither/his profile, with the sub-jects they teach, rate card andother important informationthat makes it easier for a par-ent to select a tutor.
Proprietary algorithmFor a parent or a student, allthey have to do is to visit theVidyanext website and selectthe best-suited tutor profilesand ask for a callback. Thebeta version of the servicewas released on Thursdayand this uses a proprietary al-
gorithm to identify the topfour tutors likely to be able tohelp the student. The servicerequires users to share somebasic information - type of tu-ition, willingness to travel fortuition and their location - todetermine the best match.
Empowering learningPradeep Singh, CEOVidyanext, said, “With ourstudent-tutor matching serv-ice, we are simplifying theprocess of tuition-searching.Our efforts will continue totransform the conventionalrote learning method in Indiato a process which nurturesinquisitiveness and empow-ers parents, students and tu-ition teachers with digitaltools to facilitate their role inthe learning cycle.”DH News Service
Thisstartupcanendsearchfortheright tutorforyourchildBENGALURU: Finding it dif-ficult to get a tutor for yourschool-going child? You cannow locate a suitable tutorfor free through a tutor-student matching servicedeveloped by a Bengaluru-based startup.
Education startupVidyanext recently launchedits tutor recommendationservice to help students find atutor from its database of8,000 registered tutors. Ofthis, over 1,000 tutors are list-ed in Bengaluru alone. Be-sides Bengaluru, the serviceis being offered in Gurugram
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A screenshot of the Vidyanext website.
Priyank Kharge, IT BT and Science and Technology Minister,tastes dosa made from a dosa making machine exhibited atBengaluru Technology Expo and Innovator-Investor meet or-ganised by the Department of Science and Technology, Gov-ernment of India in the city on Thursday. DH PHOTO
B’luru’s global standingin start-ups willimprove: ministerBENGALURU: IT, BT andTourism Minister PriyankKharge on Thursday said Ben-galuru city occupies the 13thplace globally in the start-upsecosystem and will soon be el-evated to the 10th position.
He was speaking at theLockheed Martin BengaluruTech Expo and InnovatorsMeet, India InnovationGrowth Programme, in the
city. He added that the growthwas because there are manyinnovative minds coming upwith several innovations. Fromthe 100-odd applicationswhich the government had re-cently received, 12 start-upswith unique ideas were select-ed and the government is pro-viding them funds of up to Rs2.2 crore.DH News Service
Naveen Menezes
BENGALURU: Decentralisedapproach to treatingsewage, rejuvenating lakesand harvesting rainwaterhave the potential to gener-ate a whopping 31 thou-sand million cubic (tmc) feetof water every year, whichis much more than what thecity needs, finds a lateststudy by researchers fromthe Indian Institute of Sci-ence (IISc), Bengaluru.
The study was conducted bya team of scientists includingsenior researcher Ramachan-dra T V, Energy and WetlandsResearch Group, Centre forEcological Sciences, IISc, toassess the quantum of wateravailable in the region to meetthe domestic demand.
The study largely banks on
three key potentials: annualrainfall, sewage treatment andefficient rainwater harvestingsystem.
“There is 30.85 tmcft of wa-ter available in the region an-nually to cater to the demandof Bengalureans, which is20.05 tmcft. However, the cityadministration should opt fordecentralised optimal watermanagement,” Prof Ra-
machandra notes.“Bengaluru records an av-
erage annual rainfall of 787mm and the total annual wateryield is about 14.8 tmcft. Thedomestic demand of water is20.05 tmcft per year (1,573million litres per day - MLD).This means about 73% of Ben-galuru’s water demand can bemet by efficient harvesting ofrainwater,” the study pointsout.
The quantification ofsewage generated shows thatabout 16.04 tmcft (1,258MLD) of sewage is generatedin the city.
The research paper notesthat the sewage treatmentwith complete removal of nu-trients and chemical contam-inants can be achieved by con-structing decentralisedtreatment plants.
It gives an example of a suc-cess model (secondary treat-ment plant integrated withconstructed wetlands and al-gal pond at Jakkur lake).
The study, however, ob-serves that this model of de-centralised harvesting of wa-ter and use of treated sewageis not an attractive propositionfor the current breed of deci-sion-makers with a colonialstyle of functioning.
The financial gain is muchhigher in the case of megaprojects (such as water diver-sion) compared to these de-centralised models. This is thesole reason for the local ad-ministrators to degrade de-centralised water harvestingstructures and alienate the lo-cal community, the researchpaper says.DH News Service
Rajnath incity today
»Union Home Minister Ra-jnath Singh will be in Ben-
galuru on Friday to attend aparty event. He will arrive by aspecial flight on Friday after-noon to attend the party pro-gramme and leave for NewDelhi in the evening.
Treat sewage, revive lakes, harvest rainto end B’luru’s water woes: IISc study
