Screening Waste Water
Objects in the water which is being released into nearby watercourses can be damaging to the environment and contribute to pollution levels, particularly if the object is one which can give off harmful contaminants into the water and cause issues such as the poisoning of the water. This can result in the death of any aquatic creatures in the water such as fish, as well as those animals which rely on the water for drinking. In certain situations this contaminated water can even cause health problems for humans if it were to find its way into the drinking water supplies of homes and businesses. This is more likely in developing countries where sanitation levels and water treatment is nowhere near as comprehensive as it is in developed countries.
One of the simplest ways of removing waste materials from water is to erect screens which act as a barrier for large objects, trapping them behind the screen and preventing the item getting released into the "outside world" where it can do damage. Whilst some elements of health and safety require large expense and comprehensive training, it is refreshing to know that there are still remedies such as this which are simple and inexpensive but at the same time are highly effective at what they do.
Like many other health and safety protective measures, screens will need regular maintenance in order to ensure their continuing effectiveness. For starters, the screen will need to be regularly cleared of the build up of the waste materials. Whilst it should not reduce the effectiveness of the screen unless the weight of the build up combined with the flow of water puts so much pressure on the screen that it breaks, there is the possibility of blocking the channel and causing a flood. Not only can this damage surrounding buildings and equipment, but it will also allow the hazardous material to escape onto the land where it could ultimately do damage. The frequency of the cleaning will depend greatly upon the amount of waste material that is released and caught by the screen as the build-up can cause a dam to form.
The screen itself will also need to be monitored regularly to check it for damage which can result in gaps which let through some of the waste objects, thus lowering the effectiveness of the screen and resulting in it not doing what it was put there to do.