Challenging treatment of food wastes for cleaner production after the African swine fever outbreak in South Korea

Applied Biological Chemistry

Table 3 Food waste and FWL treatment status after ASF outbreak

Classification		Number of facilities			Food wastes	Food waste leachate (generation)	Food waste leachate (treatment)
Classification		Sum	Public	Private	-------------------------------------------- (t/d) --------------------------------------------
Wet feed production		33^a	0	33	496	–	–
Dry feed production		33	19	14	4306	2754	–
1	Raw materials	28	17	11	4037	2732^b	–
2	Dewatered cake	5	2	3	269	22	–
Composting		85	36	49	4187	1856	–
1	Raw materials	51	29	22	2588	1752	–
2	Dewatered cake	33	7	26	1590	104	–
Intermediate processing		79	30	49	3,911	2360	–
Biogas production(food)		25	21	4	1318	–	2696
1	Food (raw materials)	12	10	2	1318	–	178
2	Food waste leachate (liquid)	13	11	2	0	–	2518
Biogas production (total)		43	25	18	1096	–	2540
1	Food (raw materials)	17	11	6	1096	–	271
2	Food waste leachate (liquid)	26	14	12	0	–	2269
Incineration		10	5	5	27	–	193
1	Food (raw materials)	4	1	3	27	–	0
2	Food waste leachate (liquid)	6	4	2	–	–	193
Others		–	–	–	410	–	458
Total		316	144	172	13883^c	6,970	5887

a The product of 33 facilities was used as feeds for pigs, dogs, and insects (304 t/d). This includes the results of 262 facilities that operated before the ASF outbreak (see Albaro data)
b If approximately 85% of raw materials of dry feed production are generated as FWLs, the amount is 3431 t/d; however, the result is 699 t/d less. It is estimated that some dewatered cakes were imported
c Total food waste = wet feed production + dry feed production (excluding dewatered cakes) + composting (excluding dewatered cakes) + intermediate processing + biogas production + incineration