... bricks of the sludge and place them on the pond wall to prevent the sides from erosion. In the meantime, the sludge is put in concrete ponds.In this alternative, the aeration of the pond will ... and monsoons create movements in the water, these activities control the salinity and turbulence of the Gulf. Monsoons also control the surface currents of the Gulf, being clockwise during the ... along the bottom of the pond and thereby suspends the sludge. The sludge is pumped through a trickle filter, which needs ammonia to feed the microorganisms on the filter. Four grow-out ponds...