Integrating anaerobic co-digestion of dairy manure and food waste with cultivation of edible mushrooms for nutrient recovery

Ship-generated nutrient-rich waste sources, including food waste and sewage water, contribute to eutrophication and deoxygenation of marine ecosystems. This chapter aims to discuss the characteristics of these waste and wastewater sources, review current ship-generated organic waste and wastewater regulations, inventory conventional management and treatment practices, and identify future perspectives for more sustainable nutrient-rich waste and wastewater management on board of ships. According to regulations, untreated food waste and sewage can generally be discharged into the open sea at more than 12 nautical miles from the nearest land, hence this is currently a common practice. However, special restrictions apply in special designated areas such as the Baltic Sea, where food waste must be comminuted/grounded and nutrients need to be removed from the sewage prior to discharge at 12 nautical miles from the nearest land. Current research looks at the valorisation of these waste and wastewater sources through anaerobic digestion, composting and/or nutrient recovery.

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Physical Properties of Dairy Manure Pre- and Post-Anaerobic Digestion

Applied Sciences ◽

10.3390/app9132703 ◽

2019 ◽

Vol 9 (13) ◽

pp. 2703

Author(s):

Hui Wang ◽

Horacio A. Aguirre-Villegas ◽

Rebecca A. Larson ◽

Asli Alkan-Ozkaynak

Keyword(s):

Anaerobic Digestion ◽

Physical Properties ◽

Linear Model ◽

Food Waste ◽

Dairy Farms ◽

Dairy Manure ◽

Biogas Yield ◽

Volatile Solids ◽

Anaerobically Digested Dairy Manure ◽

Sand Bedding

Manure characteristics change through processing, including anaerobic digestion (AD). These changes can alter handling of manure during downstream operations. This study analyzed the density, total solids (TS) content, and volatile solids (VS) content of pre-digested and anaerobically digested dairy manure from seven dairy farms in Wisconsin. The density of pre-digested manure increased from 990 to 1065 kg m−3 as the TS level increased from 1.5% to 13.0%. Density and TS for pre-digested manure from facilities using separated solids as bedding were related with a linear model for TS ranging from 1.5% to 13.0% and with a polynomial model for TS ranging from 1.5% to 50%. The model shows that density decreases with an increasing TS content when TS is greater than 8.0%. Manure from dairy facilities that used sand bedding had a VS/TS ratio of 0.87. This ratio was higher than the ratio when manure solids were used as bedding (0.81) and when food waste was incorporated into the digester (0.77). This study also provides a simple methodology to estimate biogas yield by using the density of pre- and post-digested manure.

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Carbon footprint and energy analysis of bio-CH4from a mixture of food waste and dairy manure in Denver, Colorado

Environmental Progress & Sustainable Energy ◽

10.1002/ep.12762 ◽

2017 ◽

Vol 37 (3) ◽

pp. 1101-1111 ◽

Cited By ~ 1

Author(s):

Sharath K. Ankathi ◽

James S. Potter ◽

David R. Shonnard

Keyword(s):

Carbon Footprint ◽

Food Waste ◽

Energy Analysis ◽

Dairy Manure

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Performance and Microbial Analysis of Anaerobic Digesters Treating Food Waste and Dairy Manure

Biological Engineering ◽

10.13031/2013.25332 ◽

2008 ◽

Vol 1 (3) ◽

pp. 233-242 ◽

Cited By ~ 21

Author(s):

H. M. El-Mashad ◽

J. A. McGarvey ◽

R. Zhang

Keyword(s):

Food Waste ◽

Dairy Manure ◽

Anaerobic Digesters ◽

Microbial Analysis

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HIGH-SOLID ANAEROBIC CO-DIGESTION OF FOOD WASTE AND DAIRY MANURE: A PILOT SCALE STUDY AT LOW-TO-MODERATE TEMPERATURE CONDITIONS

Detritus ◽

10.31025/2611-4135/2019.13785 ◽

2018 ◽

Vol Volume 05 - March 2019 (0) ◽

pp. 1

Author(s):

Rajinikanth Rajagopal ◽

Bernard Goyette ◽

Jean-François Hince

Keyword(s):

Food Waste ◽

Pilot Scale ◽

Dairy Manure ◽

Moderate Temperature ◽

High Solid ◽

Temperature Conditions

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Estimating the Biogas Potential From Colleges and Universities

Volume 2: Economic, Environmental, and Policy Aspects of Alternate Energy; Fuels and Infrastructure, Biofuels and Energy Storage; High Performance Buildings; Solar Buildings, Including Solar Climate Control/Heating/Cooling; Sustainable Cities and Communities, Including Transportation; Thermofluid Analysis of Energy Systems, Including Exergy and Thermoeconomics ◽

10.1115/es2014-6433 ◽

2014 ◽

Cited By ~ 2

Author(s):

Jacqueline Ebner ◽

Shwe Sin Win ◽

Swati Hegde ◽

Scott Vadney ◽

Anahita Williamson ◽

...

Keyword(s):

New York ◽

Food Waste ◽

Electrical Power ◽

New York State ◽

Colleges And Universities ◽

Dairy Manure ◽

Top Down ◽

Bottom Up ◽

Rochester Institute Of Technology ◽

Institute Of Technology

Academic institutions present a unique opportunity for anaerobic digestion (AD) projects in that they have a concentrated population that generates waste, utilizes heat and electrical power, and often are motivated to implement sustainability initiatives. However, implementation of AD on college campuses in the U.S. is only beginning to emerge and data required to size and operate digesters are limited. This paper provides formulae to estimate food waste generated at college and university campuses base upon data collected at the Rochester Institute of Technology. Bottom-up and top-down estimates are presented and results are compared to an extensive review of publicly available data from other colleges and universities. The bottom-up methodology resulted in a lower estimate (18 kg food waste/enrolled student) than the top-down estimate (29 kg/enrolled student). Both were significantly lower than the estimate previously reported in the literature (64 kg/enrolled student). Bench-scale co-digestion experiments of the food waste with dairy manure resulted in a methane yield of 437 ml CH4/g VS. Applying this methodology to only 4-year colleges in New York State has the potential to generate 27 million GJ of energy from food waste.

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