sludge, PAM cationic agent is essential.
The process of dissolving chemicals requires large amounts of water.
Usually the dissolved concentration of PAM cations is 1%-3%, and the dissolving agent is generally tap water from the farm.
For every ton of fecal sludge in the sludge thickening tank, abou 0.3-0.5 tons of tap water is required. Probably abou 1.5-2 times the amount of filtrate is produced.
For example, in a farm with a daily raw water treatment capacity of 60 tons, the manure screw press