Tofu is a popular food for the people because it contains good and healthy nutrition.
Furthermore, it is low-cost for many people. The tofu processing industry, which usually is
done by the small industries, can be found in almost every city in Indonesia. As a result of
the large number of the small tofu industries, the waste gives a lot of impacts towards the
environment. The great amount of water used for the tofu processing results in the great
amount of the wastewater. The waste from the tofu processing usually has a high amount of …