Sewage Treatment Plants (STP)

  • Minjur seawater desalination plant work to be completed this year

    The work on the 100-million-litre-a-day (MLD) seawater desalination plant at Minjur, on the northern outskirts of Chennai, is progressing expeditiously, Local Administration Minister M. K. Stalin informed the Assembly on Tuesday. Initiating the debate on the demand for grants to his department, he said the work would be completed this year. ILF-Mantech, an independent consultant, was appointed to monitor the work. As per its bulk water purchase agreement with Chennai Metrowater, Chennai Water Desalination Limited should deliver 15 MLD next month and 100 MLD in August.

  • Studies on the possibilities of waste water irrigation of the sewage effluent from the designed sewage treatment system

    In this modern world of advanced techniques, sewage treatment works are considered to be one of the most popular procedures carried out to use the treated wastewater for agricultural purposes or to dispose off on to the land. The primary objective of this study is to design a Sewage Treatment System for Sri Satya Sai Urban Development Authority (SUDA) in Andhra Pradesh and studying the possibilities for usage of treated wastewater for irrigation. The study area, Puttaparthy being a pilgrim center attracts people all over the world and during some special occasions the place gets over crowded.

  • Activated sludge process treatability studies on combined tannery and domestic wastewaters

    In the present study, an attempt has been made to evaluate the treatability of a combined tannery and domestic wastewater using lab-scale activated sludge reactor under extended aeration.

  • Global phosphorus flows and environmental impacts from a consumption perspective

    Human activities have significantly intensified natural phosphorus cycles, which has resulted in some serious environmental problems that modern societies face today. This article attempts to quantify the global phosphorus flows associated with present day mining, farming, animal feeding, and household consumption. Various physical characteristics of the related phosphorus fluxes as well as their environmental impacts in different economies, including the United States, European countries, and China, are examined.

  • Chemical water management and cost recovery issues: Case studies of Sivas and Fethiye in Turkey

    In this paper, the economic impact of having a wastewater treatment plant (WWTP) for medium sized towns (Sivas and Fethiye) in Turkey with the objective of environmental pollution prevention is assessed by taking investment and operation costs, required tariff levels, affordability and willingness to pay of the users into account.

  • Yamuna keeps waiting, plans pile up

    Cleaning The River By 2010 Is A Tall Order, Environmentalists Sceptical Of Govt Claims.

  • Delhi Jal Board: Unfiltered

    Arun Mathur, CEO DJB is confident that the DJB will go from strength to strength

  • Wait for sewage treatment plant may get longer for Mohali residents

    Sas Nagar: The Greater Mohali Area Development Authority (GMADA) recently tested its sewage treatment plant. But there is neither an approach road to the plant, nor any arrangement to transport the sewage water to the main treatment plant. According to sources in GMADA, the work for the approach road has not started yet because of a legal tussle between Authority and farmers, who own the land over which the road will be constructed. The pipes, which will bring sewage water to the treatment plant, could not be laid as a railway crossing falls in the way and the pipes would have to be laid beneath the rail tracks, for which the GMADA has not yet received the permission. However, according to a GMADA official, the Punjab and Haryana High Court has issued directions to Railway authorities to fix the pipes beneath the track soon. While the treatment plant is yet to start functioning, sewage water, stink and filth have become breeding grounds of mosquitoes, posing serious health problems for Mohali residents. Jaspal Singh, a resident of Phase-IX, said that due to the foul smell emanating from the nullah passing through the phase, residents have been suffering for the past many years. Singh said the nullah was a seasonal drain but with the passage of time, the garbage and sewage water from Chandigarh and Mohali started flowing into it and now it has become impossible to livge near it. "I want to sell my house but there are no buyers and in case some people turn up, they offer very cheap price as compared to houses in other sectors or phases in Mohali,' he said. Singh said that there were hundreds of other residents in the area, whose health has been ruined due to the poor health condition around the nullah. "The authorities in the past have submitted many affidavits in the High Court promising to start the sewage treatment plant on a stipulated date, but before the date arrives, they seek further extension,' he added. When contacted on the issue, GMADA Chief Administrator Vijay Pratap Singh said the GMADA is already working on both the issues. "Chandigarh MC and GMADA have taken up a joint survey to plug the points from where the sewage is being thrown into the drain. Gradually, we will also be able to solve the problem of the stink emanating from the nullah' he added

  • GMADA tests Sec-83 sewage treatment plant

    The Greater Mohali Area Development Authority has started the testing of a 10 million gallon per day capacity sewage treatment plant constructed in the proposed Sector 83 of SAS Nagar. This is the first sewage treatment plant developed in SAS Nagar that will cater to the residential as well as industrial sectors up to Sector 82 in SAS Nagar. The capacity of the plant will subsequently be extended to 15 million gallon per day, as and when the need arises. The plant is constructed in approximately 23 acres. The construction work of the plant was allotted to M/s Enviro Control Associates (India) Private Ltd, Surat, on 15-2-2006, with an estimated cost of Rs 20.30 crore. The cost includes construction of the plant as well as its operation and maintenance for a period of five year after the date of completion.

  • PMC has a sewage job on hand

    The general body meeting of Pune Municipal Corporation witnessed a row over the effluents and sewage water being released into the Mutha-Mula Rivers on a large-scale. However, Municipal Commissioner Praveensinh Pardeshi admitted that at present the PMC only has half the number of sewage treatment plants (STP) needed for the city. Mayor Rajlaxmi Bhosale even called for White Paper about the entire situation from the civic administration, to which the commissioner asked for a "minimum period' of one month. The debate started with the Shiv Sena leader Shyam Deshpande pointing out that the civic body is satisfied only with desilting the rivers and not actually keeping them clean in the real sense. "Desilting the rivers is fine, but what about the huge quantum of effluents being released into these rivers?' he asked. Corporator Anil Shirole said, "PMC received Rs 200 crore under the Jawaharlal Nehru National Urban Renewal Mission, some of which are being spent on the rivers. But what is the use of such huge funds, if unclean and sewage water is let out into the rivers.' Pardeshi said, "As against the need of the city, only half the number of STPs are functioning in the city. The total amount of sewage water generated in the city is 700 MLD, out of which only half is being treated and then released.' Corporator Vikas Mathkari asked the civic administration to carry out a probe into functioning of the agencies, who are given a contract of handling the STPs. Meanwhile, on Wednesday Shiv Sena corporator Sachin Bhagat had allegedly carried a pistol into the general body-meeting hall. NCP corporator Mohansingh Rajpal had raised questions about this during the same meeting. Thursday's meeting also witnessed some initial discussion on the same. While Congress corporator Aba Bagul objected to carrying weapons into the meeting hall, NCP corporator sought a metal detector at the entrance of the GB hall.

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