Sunday, January 24, 2016

Beware of Gujarati, even the bacteria can't escape from our sweets!

Beware of Gujarati, even the bacteria can't escape from our sweets!

Gujarati and sweet are synonyms. We use jaggery or sugar in our dal, kari and vegetables. In company of us, our Gujarati Voraji also add sugar in their non-veg dishes. Story doesn't end here. We made our bacteria and fungi addict of jaggery. 

Don't you believe this? Come and visit  CETP Vatva GIDC, Ahmedabad, the bacteria consume 40 MT jagerry every month. 


Industrialisation of Gujarat started in 1960s with the establishment of GIDCs. Naroda was the first GIDC started in 1965. Vapi started in 1967, Vatva in 1968 and Ankaleshwar in 1975. Vapi to Vatva (400 km) became the Golden Corridor of Gujarat. Vatava, Ankaleshwar and Vapi are predominantly hubs of chemical based industries. 

The GIDCs were mostly established near the rivers or nalas so that the effluent can be pumped out to the sea through the water bodies. Initially, the environmental problems were not serious but with increased in units and production quantity of chemicals, unseen environmental problems made an appearance. Millions of litres of untreated effluents pumped out into the river and Arabian Sea became the worry of all. The Golden Corridor, particularly Vatva, Ankaleshwar and Vapi were exceeding standard pollution parameters of COD, BOD and Ammonia. CEPI scores were declared and the expansion of existing units and establishment of new units were banned. 

The alarm bell wake all up for building environmental infrastructure. The environmental awareness amongst the people become pressure groups. As a result, the industries with the help of governments invested in building environmental infrastructure of CETP (Common Effluent Treatment Plant), individual ETPs, and common spray dryers, captive spray dryers, etc, with SCADA (supervisory control and data acquisition) and flow metres of real time monitoring system with IT support.

The effluent pass through primary and secondary treatments. It passes through Equalization Tank, Flash Mixer, Flocculator, Dissolved Air Floatation Unit, Aeration Tank, Secondary Clarifiers and finally to the river or the sea after the treatment. The sludge are dumped at the identified land fill sites. The gypsum is used as raw material in cement industry.

Aeration is the major treatment to reduce COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand) and Ammonia from the industrial effluent. The effluent collected at the CETP pass through the tank full of bacteria and fungi that consumes the chemicals. Therefore, their life lines are important. The aerators save them but that is not sufficient. Molasses extends their strength and life line more. Therefore, the managers of the CETP Vatva experimented the use of jaggery into the CETP tank. And it became successful. Now they feed the bacteria with 40 MT jaggery every month.

Gujaratis are Gujaratis, find their way out from all odds. With our sweet tongue, we not only make the surrounding sweet and peaceful but also make them consumer of our ideas with sweets. The bacteria can't escape from our sweetness. 

The CEPI (Comprehensive Environmental Pollution Index) score of Vatva GIDC has come down from 75 in 2010 to 53 in 2015, within the standard limits. The environmental infrastructure has reduced the CEPI score of Ankaleshwar and Vapi too.

Beware of Gujaratis. They will make you the sweet eater too !!! Lol.

24 January 2016


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