The methods for the disposal of contaminants retained by the grid are: landfill, incineration (above 820°C), compost, etc. It is also possible to pulverize the grid slag before returning it to the wastewater, as the sinkable solids enter the primary sludge. The crusher should be set behind the grit chamber so that large inorganic particles do not damage the crusher. In addition, large rags and fabrics should be removed before crushing.

The coarse grid is used to remove the larger suspended solids that may block the pump unit and pipeline valves, and ensure that the subsequent processing facilities can operate normally.

The coarse grid is composed of a group (or groups) of parallel metal grids and frames, installed obliquely at the inlet of the water, or at the inlet of the collection well of the water pumping station to intercept large suspended solids in the sewage. Impurities.

The coarse grid is used to remove the larger suspended solids that may block the pump unit and pipeline valves, and ensure that the subsequent processing facilities can operate normally. The coarse grid is composed of a group (or groups) of parallel metal grids and frames, installed obliquely at the inlet of the water, or at the inlet of the collection well of the water pumping station to intercept large suspended solids in the sewage. miscellaneous