| 摘要 |
FIELD: treating of water during breeding of fish and vegetation. SUBSTANCE: method relates to wasteless processing of water for breeding fish and vegetation in water circulation systems without discharge of water and sediment with utilization of biogenic substances contained in it. Water is branched from fishery breeding basin and subjected to mechanical and biological cleaning and this results in sediments which are with part of water in the form of suspended articles are divided into above-sediment water and thickened sediment. Added into above-sediment water during its circulation passing through root system of plants depending on physiological phase of plant growing is part of water from fish-breeding basin which undergone mechanical cleaning, and nutritive matters. In case of surplus above-sediment water, its part is directed to biological cleaning. Thickened sediment is delivered for producing compost. Larger proportion of water from fish-breeding basin undergone mechanical and then biological cleaning receives some fresh water and is subjected to thermal action and before delivery to fish-breeding basin is saturated with oxygen. In result, regulated are quality and quantity of water used both in process of fish and vegetation breeding depending on their physiological phase of growing. Method ensures utilization of biological matters, increase of fish breeding productivity, high profitability, protection from harmful effect on objects of environmental medium. EFFECT: high efficiency. |
