Traitement des eaux usées

Prevention

The biological treatment is to put the organic matter contained in wastewater, provided they are biodegradable and do not contain toxic in contact with an active bacterial mass in the presence of oxygen: it will feed organic matter and degrading. It reproduces in specific reactors a phenomenon that would have occurred naturally but much more slowly into the rivers. At the end of this process, bacteria are the "sludge" that must be separated from the treated water. Industrial sludge by-products of the treatment of industrial wastewater and treatment aims to reduce the volume and odor nuisance or microbiological sludge. These resources are typically appeal to operations phase separation by natural or mechanical thickening, dewatering centrifugal sedimentation or filtration, drying, evaporation, and finally stabilization and sanitation in terms of reducing pollution. The final disposal of the sludge can be achieved by recycling in agriculture or industry itself, which may be, applying the precautionary principle. Toxic sludge will be disposed of in an incinerator, preferably at elevated temperature, but can also be treated directly in the liquid state by pressure oxidation. Discharge, reclassified engineered landfill, but will remain a solution for many sludge or waste since its design and mode of operation will be blameless, through controlled procedures. Compared with conventional treatment systems designed to discharge into the natural environment, the reuse of wastewater requires further processing to make the quality of treated water compatible use you want to make. The two main areas of wastewater reuse are, on the one hand, irrigation, on the other hand, the recycling industry for various uses.

Conservation

There are many ways to conserve water, in the house like outside. We can conserve water by putting some efforts and by doing this things, for example, outside our house:

• Use a broom to clean your driveway or sidewalk instead of watering them with water.

• Watering plants in the spring is not always advisable. Less watering is abundant at the beginning of the growing season, the more roots will sink into the ground. This creates a larger pool of water.

• To water your garden or lawn, use a suitable sprinkler automatic shutdown that suits your needs. The lawn should not be watered more than once every three to five days. Evaporation occurs more slowly in the morning or early evening. During water shortages, lawns should not be watered at all.

• Consult your local horticulturist for the use of drought resistant plants and ground covers that will result in a saving of time and water.

• Apply mulch to help retain water around trees and shrubs and control the proliferation of weeds. The presence of weeds can slow runoff water to other plants.

• Collect rainwater in large tanks and use it for watering plants outside.

• Use a bucket and sponge to wash the car, then quickly rinse using a garden hose with a nozzle.

• Avoid filling your pool to the brim to prevent water losses due to splashing. A pool cover can also be used to prevent evaporation.

The level of water supply in the province tends to remain

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