Chitosan is a substance that has a positive charge. It can trap fats that are negatively charged. The trial of chitosan for the first time in a biological wastewater treatment in Japan.
Chitosan is a substance that has a prachubuak can trap the fat that is a negative charge. The trial is the first substance Chitosan in wastewater treatment, biological models in Japan.
A SAN is a substance, which has a positive charge, it can be trapped fat that is completely removed by the trial Protocol, San Marino รไค Sa, first time in a biological wastewater treatment in Japan.