IWA Publishing

Table 1

Summarized information of the sampled plants (sludge = dewatered digested sludge, digestate = digested OFMW; PE, population equivalent)

Type	Identifier	Size	Dewatering device	Sample(s)
WWTP	A	50,000 PE	Centrifuge	Sludge
	B	400,000 PE	Centrifuge	Sludge
	C	2,000,000 PE	Centrifuge	Sludge
	D	50,000 PE	Centrifuge	Sludge, homogenized OFMW
	E	200,000 PE	Centrifuge	Sludge, slaughterhouse waste
	F	325,000 PE	Chamber press	Sludge, expired drinks
Biogas plant	G	30,500 Mg/a	Centrifuge	Digestate, compost
	H	22,500 Mg/a	–	Digestate, compost

Type	Identifier	Size	Dewatering device	Sample(s)
WWTP	A	50,000 PE	Centrifuge	Sludge
	B	400,000 PE	Centrifuge	Sludge
	C	2,000,000 PE	Centrifuge	Sludge
	D	50,000 PE	Centrifuge	Sludge, homogenized OFMW
	E	200,000 PE	Centrifuge	Sludge, slaughterhouse waste
	F	325,000 PE	Chamber press	Sludge, expired drinks
Biogas plant	G	30,500 Mg/a	Centrifuge	Digestate, compost
	H	22,500 Mg/a	–	Digestate, compost