The kitchen waste was manually sorted from MSW provided by
the Majialou MSW transfer station (Beijing, China). The proportions
(wet weight) of kitchen waste components were as follows
(in%): Vegetables: 41.6; Peels: 29.7; Staple food: 22.3; Meat: 0.2;
Eggshells, bones, and shells: 4.0; Nutshells and cores: 2.2.
The withered CS were collected from farmland in Beijing, and
cut to lengths of 1–5 cm. Dry SD was purchased from a timber mill.
Dry SMS, which had been discarded and stockpiled for a few days,
was provided by a mushroom farm in Beijing. The physical and
chemical properties of the raw materials are presented in