Cationic polyacrylamide copolymers (PAMs):
2018-5-18 · Spreading of the sludge on agricultural land is currently one of the most important recycling routes. In Germany, the maximum application rate of sewage sludge on agricultural land is 5 tons dry solid (TDS) per hectare as an average over 3 years . Considering that the dewatered sludge contains around 5 kg/TDS significant amounts of PAM end up on the soil.
Get Price