Jurnal Publikasi STMIK Pontianak

Perancangan Sistem Kendali Otomatik Proses Pengolahan Limbah Cair Tahu Berbasis Mikrokontroler At89s52

Abstrak

Tofu industry is one of the people industries which are many in Pontianak. The existence of this industry causes a negative impact which is environmental pollution caused by tofu liquid waste. Tofu liquid waste is a kind of wastewater which is produced along with the making of tofu. The environmental pollution caused by tofu liquid waste can be overcome by giving the tofu liquid waste a treatment process before it's being wasted to the environment. To make the treatment process easy, I desinged an automation control system for the tofu liquid waste treatment process. The controller is a microcontroller AT89S52 which is a cheap microcontroller and also easy-to-program. The assembly programming is used to program the microcontroller. The results showed 83,98 % of average reduction of Chemical Oxygen Demand (COD) for treatment process in 3 days.

Keywords: tofu liquid waste, microcontroller AT89S52.