Waste Water Treatment Technology


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Disposal of waste water originating from household and industrial waste can cause pollution, especially to water. This can affect the quality of water there. There is a study that 285 of 636 samples of groundwater sources have been contaminated by the bacterium Escherichia coli. Chemically about 75% water containing nitrates, nitrites, iron, and manganese. To handle the problem exists alternative with waste water treatment technology.

From industrial activities, waste is waste that is generated that contains hazardous substances that can be harmful for humans and the environment. If waste is reproduced on a large, it will be able to pollute the clean water is often consumed and will cause disease, such as digestive disorders, cancer, etc.. To cope with the amount of production generated by the industrial need for control in production. This control aims to minimize the volume of waste generated, also the concentration and toxicity of contaminants and reduce levels of contamination of materials that meet the requirements of a decent water.

• Industrial Waste Water Restrictions

Problem of clean water is not a simple problem like that because they waste water treatment requires substantial investment and operating costs are greater. For that, the waste water treatment must be done carefully, of careful planning, careful operation, and construction of waste water treatment plants properly. There are quality parameters used in the treatment of waste water, such as organic parameters, physical characteristics, and specific contaminants.

• Waste water Treatment Technology

The main purpose of waste water treatment is to parse the content of the material in water pollution, such as organic compounds, suspended solids, microbial pathogens, and organic compounds that can not be decomposed by microorganisms in nature. Waste water treatment is divided into 5 stages, namely:

1. Early Stage

This stage serves to remove suspended solids and oil in waste water.

2. First Stage

The first stage has the same function to the initial stages. However, the difference in the process.

3. Second Stage

The second phase of this function removes solutes from waste water that can not be eliminated simply by ordinary physical processes.

4. Third Stage

Waste water treatment processes include, agglomeration and sedimentation, filtration, carbon adsorption, ion exchange, membrane separation, and flotation.

5. Last Stage

Sludge is formed as an aftereffect of the stages before which reprocessed through the process of digestion, pressure filtration, vacuum filtration, lagoon, and landfills.

• Selection of Waste Water Technology

Selection of waste water treatment technology should be grouped according to the characteristics of the waste by using indicator parameters. After that, made the consideration of economic aspects, technical aspects, safety, reliability, and ease of operation. So that the technology chosen should be appropriate according to the characteristics of waste. After that, do a feasibility study aimed at:

1. Ensuring that the technology selected from the process according to the characteristics of waste to be processed.

2. Develop and collect data for efficient processing.

3. Provides technical and economic information for the application of the scale.

We need to realize that waste is something that is dangerous and also detrimental. The best solution from waste water treatment technology is eliminating the waste itself.

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