Integration of wastewater treatment into process design of lignocellulosic biorefineries for improved economic viability

Table 5 Summary of equipment, installed and operating cost for treatment alternatives

Treatment alternative	Equipment cost ($)	Installed cost ($)	Operating cost ($/year)	Total cost, 30-year net present value ($)
Anaerobic treatment (base case)	27,200,000^a	50,000,000 [7, 32]	3,182,000	80,076,000
Ecosystem services	26,023,000^a	47,816,000 [7, 32]	3,069,000	76,747,000
Physical treatment (evaporation)	15,000,000^b	33,000,000^b,c	2,353,000	55,184,520

^aAnaerobic treatment equipment cost estimated
^bPersonal communication with Lundberg, LLC | A Dustex Company
^cEvaporator installed cost estimated at 2.2 times equipment cost as described by economic methods of [7]

ISSN: 2731-3654