This, it said, was resulting in significant changes in ground service equipment (GSE) management systems being developed by airports, including the LSV (lavatory service vehicle) market, in response to the growth in smaller aircraft.
The expected growth in the LSV market. As stringent environmental regulations pushed airport authorities towards zero-emission vehicles in the GSE market, the study pointed to the push for electric LSVs.
It also said that large LSV manufacturers, such as Vestergaard Company, were introducing electrically-operated vacuum toilet service units to meet rising demand for environmentally-friendly lavatory service vehicles across the world.
- Waste tanks on aircraft cannot overflow as not only do toilets have sensors that monitor levels, the vacuum system takes waste to holding tanks in another part of the aircraft.
- An Airbus 380 aircraft has four waste tanks in its belly with a total capacity of 2,096 litres. Waste is not dumped by an aircraft during flight. The deep blue disinfectant pumped into the toilet system is what is occasionally reported as blue ice falling from aircraft. It is usually caused by a malfunctioning valve that has sprung a leak on the outside of the plane, causing the waste liquid to freeze and sometimes fall off or melt before it hits earth. There have been instances where the ice has carved off and caused aircraft engine damage.
Collected and summarized from the source below by Minh Pham https://thewofa.com/2019/11/bullish-outlook-for-aircraft-toilet-waste-removalists-report/