Jisha Surya
June 30, 2013
Thiruvananthapuram: The sewage treatment plant (STP) at Muttathara has started functioning without much fanfare. The first of its kind in the state, the STP’s scientific treatment of sewage brings much respite to the city. However, the plant which cost nearly Rs 90 crore cannot decompose septage, the waste in septic tank.
Currently, the STP could treat only sewage only after suspended particles are removed from it. Large suspended particles, small suspended particles and grit were removed in a multi-step process during its movement through the intake chamber, screening chamber and grits chamber. Since the septage has solid waste, it has to be diluted into a liquid form before introducing into the STP.
“We need to have a septage diluting chamber to the STP for treating the septage. The septage has to be diluted before subjecting to aerobic treatment,” said an official, expressing hope that the facility would be included into the STP within a year.
Shockingly, the Corporation which collects septage from septic tanks in the city usually dump it secretly in manholes. According to a contractor, who is engaged in maintenance of drainage, it was a common practice of Corporation to dump septage in manholes in the roads. “It is one of the major reasons for the block in drainage lines. Ideally, the septage must be treated along with the sewage,” he said.
The tender for sepatge diluting chamber was cancelled last month after the KSUDP decided to re-tender around 16 works, citing technical reasons. As reported by TOI earlier, KSUDP’s decision to re-tender the works would affect the project as the period of work will end by March 2014. The empowered committee decided to retender some projects as original estimates prepared by Kerala Water Authority were above the expected rate.
However, the official in charge of STP said the Septage diluting chamber will be introduced in a year. “It would require only three months to install the machinery once the tender is awarded,” he said.
Meanwhile, KSUDP has invited tender for setting up package septage treatment plant of 100 m3 per day capacity at Ernakulam, Alappuzha and Palakkad the other day. However, the capital city was not included in the list though the city faces major crisis in treatment of septage.
ENDS
June 30, 2013
Thiruvananthapuram: The sewage treatment plant (STP) at Muttathara has started functioning without much fanfare. The first of its kind in the state, the STP’s scientific treatment of sewage brings much respite to the city. However, the plant which cost nearly Rs 90 crore cannot decompose septage, the waste in septic tank.
Currently, the STP could treat only sewage only after suspended particles are removed from it. Large suspended particles, small suspended particles and grit were removed in a multi-step process during its movement through the intake chamber, screening chamber and grits chamber. Since the septage has solid waste, it has to be diluted into a liquid form before introducing into the STP.
“We need to have a septage diluting chamber to the STP for treating the septage. The septage has to be diluted before subjecting to aerobic treatment,” said an official, expressing hope that the facility would be included into the STP within a year.
Shockingly, the Corporation which collects septage from septic tanks in the city usually dump it secretly in manholes. According to a contractor, who is engaged in maintenance of drainage, it was a common practice of Corporation to dump septage in manholes in the roads. “It is one of the major reasons for the block in drainage lines. Ideally, the septage must be treated along with the sewage,” he said.
The tender for sepatge diluting chamber was cancelled last month after the KSUDP decided to re-tender around 16 works, citing technical reasons. As reported by TOI earlier, KSUDP’s decision to re-tender the works would affect the project as the period of work will end by March 2014. The empowered committee decided to retender some projects as original estimates prepared by Kerala Water Authority were above the expected rate.
However, the official in charge of STP said the Septage diluting chamber will be introduced in a year. “It would require only three months to install the machinery once the tender is awarded,” he said.
Meanwhile, KSUDP has invited tender for setting up package septage treatment plant of 100 m3 per day capacity at Ernakulam, Alappuzha and Palakkad the other day. However, the capital city was not included in the list though the city faces major crisis in treatment of septage.
ENDS
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