4.Waste water from factories. Waste water from factories, including bath waste system. Cooling system building, housing and made the price and the store food substances may be mixed to organic matter, inorganic acid, alkali.Toxins and other sandy sewage which when dumped into the river canals will make the increase of those born or intoxication with creatures in the bath was rotten's color. The smell and unsightly
.
3.The fertilizer used in agriculture. The main fertilizer used in agriculture include compounds of nitrogen and phosphorus Phosphorus in the form of phosphate can be attached to the soil, and thus has the minority that flows with trade. So substances that cause the problem is nitrogen.When it rains, the rain will wash away the nitrogen flow to remove water surface into the I
.Water canals, help the algae grow well, a lot of to make the water's color. Taste and smell when these algae die down, make water rot and phenol higher born white cover floating on water surface
4.Surface collapse. In some area, such as water reservoir and has broken the deteriorating Avalanche of soil to be made with high turbidity water's colour, odour and taste.
การแปล กรุณารอสักครู่..