Techno-economic evaluation of electrocoagulation for cattle slaughterhouse wastewater treatment using aluminum electrodes in batch and continuous experiment

Table 4 Summary of operating conditions and costs of EC compared to conventional treatment methods

Parameter	Unit	Current EC study	Similar EC studies [3, 23, 31,32,33, 37,38,39,40,41]	Conventional Treatment methods [4, 34, 42, 43]
HRT	h	1	1–1.5	3–20
CD	mA cm⁻²	4	2–30	–
Aluminum electrodes consumption	kg m⁻³	0.6	0.4–1.5	–
Energy consumption	kWh m⁻³	0.876	0.7–20	2.5–95
Sludge volume produced	L m⁻³	68	–	80–350
Sludge weight (as TS)	kg m⁻³	1.15	0.96–1.78	2.8–3.9
Sludge organic matter content (as VS)	%	78	–	60–80
Total Operating cost	USD m⁻³	1.5	1.2–2.5	2.6–8.5

ISSN: 2468-2039