Saturday, March 20, 2010

World Water Day

On the world water day, Saturday 20 of March, Indonesian government performs the river sail in Ciliwung – Jakarta. A number of Government institutions to celebrate this party, such as forestry department, general affair department and many others department.
This celebration also do with planting a number of plant in the side of this river to stand the water flood. Hundred seed of fish also release to the river. Unfortunately the scene of the river still don’t see nice because on the river still many waste and domestic waste look piling on the river side. Many of plastic waste can’t be transported on the side of river.

This celebration also care by two girl’s student from United States. They told that water source should be care to keep the live going on. Enthusiasm of civil also come to care the water keep clean, because after that look 17 boot ship that sail on this river. By this world water celebration, government hope civil will take care of their environment in order that water can use together.

Tuesday, March 16, 2010

Water Conditioning Process

Water conditioning must be adapted to the particular use for which the water is designed, and problem should be referred to the experts in the field. The use of elevated pressure (17.2 MPa and higher for steam generation) requires the employment of extremely carefully purified boiler feedwater. Each industry has its special water conditioning requirement; e.g. laundries require zero hardness to prevent the precipitation of calcium and magnesium soap on clothes. Calcium, magnesium, and iron salts cause undesirable precipitates with dyes in the textile industries and with the dyes in paper manufacture.

In this industry an abundance of fairly soft water has long been available from surface supplies of the industrial Northeast. Cities such as New York and Boston obtained comparatively soft water from rural watersheds over igneous rocks. However, as the middle west and the west were developed, it became necessary to use the harder water prevailing in many areas, particularly those rich in limestone. This hard water needs to be softened for many uses. Furthermore, as the advantages of really soft water needs to be softened, more and more fairly soft waters are being completely softened for laundries, homes, textile mills, and certain chemical process. Thomas Clark of England, in 1841, patented the lime process for the removal of carbonate, or temporary; hardness, followed by Porter, who developed the use of soda ash to remove the noncarbonated, or permanent hardness of water. In 1906, Robert Gans, a German chemist, applied zeolite to commercial use for water softening purposes. Only since the 1980s has softening been extended to municipal supplies to any appreciable extent.

Method:
The purification and softening of water may be accomplished by different methods, depending on the prospective use. Softening in the term applied to process which remove or reduce the hardness of water. Purification, as distinguished from softening, usually refers to the removal of organic matter and microorganism from water. Clarification may be very important and may be combined with cold water softening by precipitation.

Old method for water purification that usually use in Industry are ion exchange process, by this process chemical contaminated will separate by absorption method. Positive ion will absorb by negative ion or anion and negative contaminate will absorb by positive ion or cation in ion exchange unit. By using this unit water will result nearly 98% of pure water. This pure water usually use for boiler feed, but still can’t use on pharmaceutical industry because still contain small ion contamination. For pharmaceutical Industry uses, pure water must be process by distillation unit and the unit must be made from glass material.

Tuesday, January 19, 2010

Groundwater

Ground water is located below the ground. Ground water is part of hydrologic cycle, containing 21 percent of Earth’s freshwater. Groundwater comprises of 97 percent of fresh water not included as ice and snow in ice sheet, glaciers and snowfields. This water is greatly exceeds the amount of water in streams, rivers and lakes.
Groundwater is important in supplying water to water irrigation, industry and drink water. In someplace this ground water source become critical source because the circulation is imbalance, outstream much bigger than instream requiremants, this condition need ecosystem rebuild

Environment protection need more strict because the condition right now is very crucial, less water supply to ground from nature make this ground water become damage and contaminated by waste from industry. In particular, ground water user need to know on what, how and why the nature protection needs to keep the availability of this ground water.

Ground Water Source
Ground water is located below the Earth’s surface at the depth where all the pore (open) spaces in the soil, sediment, or rock are completely filled with water. Groundwater is part of the hydrologic cycle, originating when part of the precipitation that falls on the Earth’s surface sinks (infiltrates) through the soil and percolate (seeps) downward to become groundwater. Groundwater will eventually come back to the surface, discharging to streams, springs, lakes, or the oceans, to complete the hydrologic cycle.


Wednesday, December 16, 2009

Industrial Water Uses

Water uses in industry have many names and use for different purposes. Drinking water is processed special and uses of just soft kation by ion exchange process to remove any contaminant material. Soft water is purposed for industrial process like for washing and cleaning. And for use as boiler water, water treatment should apply very special treatment for their process because this water should have no organic and inorganic contaminant. Boiler water will better if use of demineralize water, because this water will use efficient enegy.

Water supply for Industry usually been supplied from river, and from very speical limitation use of ground water. Good government rule normally banned of use ground water for industrial purposes, because ground water can cause environment damaged. Ground water just permitted for municipal uses and may not too deep to dig under ground. If using of ground water freely can break the water cycle in the nature and can cause land level down.

Many country facing of difficulties water sources, because they don't apply of strickt rule on ground water using. Disturbance on water cycle on their country have cause their civil difficult to get clean water for their water needed. Water quality can down if water cycle in the nature being broken, and they will difficult to get water for their water needed everyday.