Sea Water for Drinking

Limitations Jakarta obtain raw water to be processed into clean water can actually be overcome by utilizing the abundant sea water. PT Pembangunan Jaya Ancol not just to process sea water into fresh water, but also processes it into float pools of high salinity.

Innovation committed, among others, 7,000 cubic meters of seawater changed to 5,000 cubic meters of fresh water per day. The rest, about 2,000 cubic meters, a high salinity water that used to float pools, one of the tourist rides in the Ancol Dreamland Park.
"Technology innovation for desalination has become not merely to achieve drinking water from sea water sources was limited," said President Director of PT Pembangunan Jaya Ancol Budi Karya.

Pool float is the benefit of other educational tour, in addition to the acquisition of fresh water from Ancol NEWater project-Sea Water Desalination Plant. Bambang Tutuko Arkonin as Vice Director of the project consultant, Tuesday (28/09/2010), outlines, architectures able to produce up to capacity of 15,000 cubic meters per day.

"The design has been completed was designed and its construction is still done. Be completed later this year, "said Bambang.

Reverse osmosis

Reverse osmosis or reverse osmosis is a process that is generally taken to convert sea water into fresh water. You do this by pushing the sea water through semipermeable membranes to filter out the salt content. Salt content of the filtered set aside. Some sea water used to dissolve it. That solution which later became part of the 2,000 cubic meters per day which is then channeled into the spacecraft Atlantis Floating Pool Ancol. In the high salt content, water pond was able to float humans. However, to enjoy this floating pool, there are some provisions that apply to support safety and health.

"Reverse osmosis or RO is taken after a different treatment of raw water sources," said Bambang.

According to Bambang, the raw water taken from Lake Ancol. Lake Ancol also designed to accommodate the utilization of rain water or sewage water use public facilities in the tourist area. Importation of waste water or rain water utilization is an effort to reduce the salinity brackish lake. Thus, the reverse osmosis process is expected to become lighter with the raw water of low salt content. "It's something to do with the age of desalination technology," he said.

To produce fresh water from sea water is needed electrical energy for 4.72 kilowatt hours per cubic meter. "Right now the average power per kilowatt hour to reach the price of Rp 1,000," said Bambang. General Manager of Planning Tbk PT Pembangunan Jaya Ancol Rudiana Sandy said, his company has a need for fresh water as much as 15,000 cubic meters per day. We have not been able to meet all needs.

"From the local water company acquired only 9,000 cubic meters per day so it is still lack of 6000 cubic meters per day," said Sandy.

In addition to the lack of clean water supply, according to Sandy, also encountered obstacles are outrageously high prices. Production of clean water from the desalination process could compete with commercial grade water rates which reached Rp 12,500 per cubic meter. In fact, industrial water tariff of Rp 15,000 per cubic meter.

The value of clean water production by desalination technology developed is now able to push the price up to Rp 9,000 per cubic meter.

Development model

YJ Harwanto, as the General Manager of Ancol Taman Impian Jaya Ancol Tbk PT Development, said the desalination project is the development of model-making when there is a demand cessation of ground water in Jakarta, especially in coastal areas of North Jakarta.

"Models such as these should be developed by other parties," said Harwanto.

He said the company never took the ground water to meet the need. However, they receive the most severe impact of the most rapid decline in soil in Jakarta. It is estimated that the region has decreased soil Ancol 26 centimeters per year. Like the burial site of the Dutch Government maintained in Ancol tour region, since a dozen years ago are still 1 meter to 2 meters above sea level. However, now it is below sea level so that the necessary pumping of water when inundated by sea water.

Backfill, according Harwanto, conducted every year. The locations are not easy diuruk ultimately stagnant water or overflowing rain tides. Desalination in response to demand cessation of taking technology for ground water in Jakarta. Ancol tourist area manager has started. Awaited the others.