Tank-connected food waste disposer systems – Current status and potential improvements

Impacts and managerial implications for sewer systems due to recent changes to inputs in domestic wastewater – A review

“…Whereas Galil and Shpiner (2001) determined the added load to be within the range of 14e77%. Bernstad et al (2013a) observed the FOG content to be about 40% by weight of the dry solids from samples collected from a tank connected FWD system in southern Sweden. Effluent overflows from these tanks were also demonstrated to contain more FOG than municipal limits prescribed for the area (100 mg/L).…”

A study of the impact of moist-heat and dry-heat treatment processes on hazardous trace elements migration in food waste

“…Additionally, Bernstad et al (2013) found that ground food waste collected from tank-connected systems had a low content of trace elements. However, due to the unique dietary characteristics in some countries such as China, South Korea, etc., food waste contains a relatively high concentration of fat Zheng et al, 2012), which has not only a considerably high economic recycling value but also would significantly affect the stability of follow-up processing and the effectiveness of treatment.…”

Performance evaluation model of a pilot food waste collection system in Suzhou City, China

“…In Sweden, Bernstad (2012) analyzed several collection systems and determined that collection in paper bags results in the largest net avoidance of global warming, while vacuum collection results in the greatest avoidance of primary energy use. Bernstad (2013) evaluated an unconventional tank-connected food waste disposal system in Sweden, where the FWD units were connected to piping systems separate from the other wastewater piping in the buildings analyzed. Ground food waste was led to a settling tank from which supernatant was treated in a waste water treatment plant and settled matter was led to anaerobic treatment.…”