Abstract
Processed soybeans such as tempeh and tofu are some of the foods that the people of Indonesia favour. The Tempe and Tofu processing factory produce tofu with the essential soybean ingredients as much as 17 kg every day. The tofu production process starts from soybean immersion, grinding, boiling, filtering, compaction, moulding, cutting, to frying tofu. Production activities from the tofu industry will certainly produce solid and wastewater. These wastes can have a negative impact on the environment. Therefore, the waste must be managed and treated correctly to create an environmentally friendly industry and improve environmental quality. Tofu industry waste management and treatment can be done by identifying the generation of waste that is a priority to be treated and choosing waste treatment technology. There are three alternatives for wastewater treatment from the tofu industry: the chlorine in wastewater, ponds by forming biofilms using biofilter media, and Trickling Filters.
Highlights
IntroductionBased on the Central Statistics Agency data, around 38% of soybeans in Indonesia are consumed in the form of tofu products [1]
Tofu is a healthy, nutritious and popular soy-based food
The tofu factory is located in the South Jakarta area, which is located in South Jakarta
Summary
Based on the Central Statistics Agency data, around 38% of soybeans in Indonesia are consumed in the form of tofu products [1]. Tofu is produced through a process of grinding, refining, pressed into a board and cut into 5 cm cubes on the side [2]. The tofu production process consumes 17 kilograms of soybeans and produces 1 quintal of processed soybeans in a day. The quality of the wastewater produced by tofu dregs has a relatively high organic content and can be treated by biological processes [3, 4]. The solid waste of the tofu industry produced is in the form of tofu dregs from the filtering of boiled soybean porridge. Tofu dregs still contain high enough protein to cause unpleasant odours and tastes, so they need to be appropriately managed
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