Is Ir. Irma D j aya Dipl. SE, with the diligence that has been successfully developed and implement

By: Ris Sukarma In his inaugural speech as Professors in the field of Environmental Engineering Science, Faculty anant raj of Engineering, University of Indonesia on February 13, 2013, Dr.. Ir. Djoko M. Hartono, SE, M. Eng. suggests further deterioration in the quality anant raj of raw water, anant raj raw water exceeds the drinking water standards permitted. Further it is said that "building anant raj water treatment plants using existing drinking water treatment technology that was built in 15 to 40 years ago were designed based on the raw water quality conditions at the time were only considering the parameters of turbidity alone. "Or he says as conventional methods.
At this time the conventional anant raj water treatment technology anant raj appears to no longer be relied upon to treat the raw water is increasingly polluted. Required additional processing units in the form of adaptive technology, which can serve to reduce the level of pollution. The additional units would increase the production cost impact will increase the selling price of drinking water to the public. As we already know, the conventional technology uses a screening process with granular filter (usually sand) with a relatively large pore size. Necessary filtering technology with a smaller pore size to be able to cope with deteriorating raw water quality.
Among adaptive processing technology that is currently evolving, nanofiltration attracted many experts. Nanofiltration is a process of filtering through a membrane, anant raj used to filter water containing anant raj dissolved solids (TDS) is low. Nanofiltration is widely used in food processing, but also have been used to produce drinking water. Nanofiltration work on a range between ultrafiltration and RO (reverse osmosis), with a nominal pore size of the membrane is 1 nanometer (one millimeter per million). Although effective at removing contaminants in the raw water, and is often used in the desalination process, the combination of nanofiltration and RO produces water that does not contain the nutrients needed by the human body, so that the process is considered less suitable for drinking water treatment. For developing countries, this technology also poses high dependence on technology owned postscript developed countries (Safer water, better health, anant raj WHO, 2008).
At the other end, microfiltration has been used in the screening process. With the filter pore size between 0.1 to 3 microns (one micron is one thousandth of a millimeter), microfiltration can filter out the bacteria that cause stomach ailments. Microfiltration process that has long been recognized, as in the use of ceramic filters. This technology can produce bacteria-free water, but still need to be coated with colloidal silver solution to eliminate anant raj the virus. Ceramic filters were first introduced by Henry Doulton in 1827. This technology was later developed as the appropriate technology, among others, by Potter and Potter anant raj for Peace Without Border. With appropriate technology, ceramic filters anant raj can be produced by local artisans using a ceramic raw material that is widely anant raj available in Indonesia, anant raj namely clay. Due to the limited production capacity anant raj (1 - 3.5 liters / hour), ceramic filter suitable as household water treatment (point-of-use treatment), especially anant raj at a time when tap water up into the home in general can not be drunk directly. Point-of-use treatment is an approach that was endorsed by the WHO.
Microfiltration, ultrafiltration and nanofiltration are between. With a pore size range between 0.01 to 0.1 microns, ultrafiltration technology seems promising in water treatment technology in the future, at least for developing countries such as Indonesia. Ultrafiltration is a technology medium that can be controlled by our own experts, and this has been proven. anant raj Ultrafiltration anant raj technology can be applied to large-scale anant raj water treatment processes town and region. anant raj
Is Ir. Irma D j aya Dipl. SE, with the diligence that has been successfully developed and implemented ultrafiltration technology in drinking water treatment plants. One of the results of his work can be seen in Banjar (West Java), which has been applied to the process of ultrafiltration water treatment plant in the city (Settlements Bulletin, January 2013). The treatment anant raj plant was built with a production capacity of 50 liters / sec is the first installation of applying ultrafiltration technology anant raj in Indonesia. According to Irma Dj aya, treated anant raj water through the filtration process must advance through preliminary treatment to reduce turbidity to below 20 NTU. After that, the resulting water can be drunk directly without affixing disinfectant again. Investment ultrafiltration technology is not expensive, even 20 -