OLEH :
ATI HARTATI
EKA WAHYUNINGSIH
JURUSAN TEKNIK LINGKUNGAN – FTSP ITS SURABAYA
Most industries in Denpasar are small industries that produce specific waste. In handling this waste it needs accuate planning alternative rather than regular planning which suit to the characteristics of the waste, economy and effective. This alternative industrial waste handling in Denpasar includes the appropriate treatment process from the view of some aspects namely cost, the existing land for the process treatment installation, waste characteristics, waste collection system, and industrial waste flowing system. This planning needs data such as industrial waste characteristics, study in the field towards condition of the existing procces in indistries, data on the number of industries in Denpasar.
The alternative system for handling industrial waste for industries in and out of the DSDP service area is by providing collecting tank at each of the industry, after the collection of which the collection is transported to IPAL DSDP. Before treatment process at IPAL DSDP the industrial mixed waste collection needs pre-treatment process to eliminate high organic pressure and substance potential to create toxic for the continuation of the operational of aerated logoon. From the trial in laboratory over 5 (five) kinds of industries namely silk screening, printing, film proceesing, workshop, laundry industries in which all wastes are mixed show that phenol content is still high. The way out is to provide pre-treatment by using coagulation process and flocculation using alum as the coagulant. For the implementation it needs study over the operational system, tariff, considering that most business using small industries.
