ANTIFILTERING ARTIFICIAL DEVICES OF BIOPONDS

The article presents research data of bioponds dams erected on a permeable foundation of limited power. Anti-filtration devices in downstream of the dam are usually used in the construction of buildings on a permeable foundation. The purpose of these devices is to create obstacles for the filtered liquid waste in order to accumulate and transfer it to sludge ponds or water recycling system. Due to the fact, that bioponds are the closed ponds, payment is made in respect of the depression curve calculation for dams with screen dejectedly on the basis of permeable ultmate power. On the basis of the calculations the curve of depression is constructed (Fig. 1.3), it implies that the filtration flow of bioponds through dikes cannot expose at the surface. As it was noted above, bioponds designed in grounded cut and fill belong to Class III. According to performed calculations the slopes are 1: 3.