In addition to the cooking water, actually there are five other ways to treat water in order to drink. The fifth way is by chlorination (using chlorine), biosand (a combination of biological processes and bio sand), warming in the sun, es focculation (clotting), and filtering with ceramics.
"Based on numerous studies and trials in the laboratory, with ceramic filtering is the most economical and effective to kill germs," said Indonesian Pelita NGO manager and provider of ceramic filters, Agi Prasetyo when found in Kp. Areng, Wangunsari village, Lembang, yesterday.
Initially, the ceramic filter technology research conducted by Dr. Fernando Mazariegos in Guetamala in 1981 ago. This technology was then brought to Cambodia around the 1990s and a new entry into Indonesia in 2008. The goal is the same, namely to provide a water filter that is cost effective, especially for the lower middle class people.
Agi said, nearly 100 percent of germs and bacteria in the water to die after being filtered using a ceramic made of clay and straw. In addition, the cost of drinking water treatment with the use of ceramic cheap compared with other means.
By comparison, he said, to the cooking water for at least Rp 255 per liter is needed to provide fuel. The use of bottled water requires Rp 450 per liter. "Meanwhile, if using a ceramic filter, it takes only Rp 4.7 per liter," he said.
How it works is quite simple ceramic filter. Just by entering the raw water into the ceramic and automatically pores of the ceramic filter the water until free from germs and bacteria. Pores formed by the hull measuring 0.2-3 nanometers and silver plated so deadly bacteria in it.
Within an hour, an average of two liters of water that has been filtered already drinkable. The volume of water that can be accommodated in a ceramic filter with a diameter of 30 cm and 30 cm high it can reach 8 liters.
Marketing Pelita Indonesia, Steven A. Gunawan said, the life of a ceramic filter that applies to two years. The use of ceramics in more than two years led to water filtration is not perfect due to the pores of the ceramic are already clogged.
Supplies ceramic filter in Bandung area is still limited because of the socialization only just done recently. A set of ceramic filters and harga keramik batu alam water filter container is priced at Rp 125,000 to Rp 225,000 depending on the model and color.
"At first glance it seems expensive. But in fact, functions and benefits are much greater among public health, "he said. (Cecelia Wijaya Sari / "PR")