Performance and Economic Results for Two Full-scale Biotrickling Filters to Remove H2S from Dairy Manure-derived Biogas

2019 ◽  
Vol 35 (3) ◽  
pp. 283-291 ◽  
Author(s):  
Timothy James Shelford ◽  
Curt A Gooch ◽  
Stephanie A Lansing
Keyword(s):  
Renewable Energy ◽  
Hydrogen Sulfide ◽  
Anaerobic Digestion ◽  
Corrosion Damage ◽  
Dairy Manure ◽  
Maintenance Costs ◽  
Biotrickling Filters ◽  
Operational Costs ◽  
Key Phrases ◽  
Generator Sets

Abstract. Anaerobic digestion (AD) of dairy manure produces renewable energy in the form of biogas. Hydrogen sulfide (H2S) is formed in the produced biogas in variable quantities (up to 8,000 ppmv). H2S can cause corrosion damage to biogas-fueled engine-generator sets (EGSs), resulting in high operating temperatures, high maintenance costs, and/or lost revenues for farmers. Biotrickling filters are a common technology for H2S removal, however, there is a need for information about the performance, capital, and operational costs associated with biotrickling filters to better inform producers using or considering such systems. Keywords: Click here to enter keywords and key phrases, separated by commas, with a period at the end

Analysis of Dairy Manure and Food Manufacturing Waste as Feedstocks for Sustainable Energy Production via Anaerobic Digestion

2012 ◽  
Author(s):  
M. J. Rankin ◽  
T. A. Trabold ◽  
A. A. Williamson ◽  
M. Augustine
Keyword(s):  
Renewable Energy ◽  
Anaerobic Digestion ◽  
Liquid Phase ◽  
Organic Waste ◽  
New York State ◽  
Dairy Manure ◽  
Anaerobic Digester ◽  
Waste To Energy ◽  
Medium Size ◽  
Food Manufacturing

Anaerobic digestion is a waste-to-energy conversion process that offers potential economic and environmental benefits of organic waste diversion and renewable energy generation. However, these systems are often not feasible for small-to-medium size food processors, due to the significant capital investment involved. The key objective of this study is to identify the volume and composition of dairy manure and liquid-phase food manufacturing waste streams available in New York State (NYS) to make co-digestion of multiple feedstocks in centralized anaerobic digester facilities an economically attractive alternative. Organic waste volume and property data were obtained via Freedom of Information Law (FOIL) requests at the county and municipal levels for each of the 62 counties in NYS. Spatial analyses of dairy confined animal feeding operations (CAFO) locations relative to food manufacturing facility locations were analyzed using Microsoft MapPoint imaging software, which identified concentrations of high strength liquid-phase waste in the upstate corridor extending between Buffalo and Albany. The results show that if anaerobically digested, dairy CAFO manure and food manufacturing waste can contribute significantly to the State’s renewable energy portfolio. A laboratory scale two-phase anaerobic digester (bioDrillTS-AD200©) can help establish the correlation between waste properties (e.g. total solids, etc.) and quantity and quality of biogas produced.

Penetapan Tarif Ambulans Untuk Evakuasi Medis Berbasis Unit Cost

2021 ◽  
Vol 7 (1) ◽  
pp. 167-173
Author(s):  
Kelvin Riupassa ◽  
Narizma Nova ◽  
Endah Lestari ◽  
Sri Juniarti Azis ◽  
Wahyu Sulistiadi
Keyword(s):  
Recovery Rate ◽  
Unit Cost ◽  
Cost Recovery ◽  
Maintenance Costs ◽  
Total Cost ◽  
Medical Evacuation ◽  
Operational Costs ◽  
Emergency Ambulance ◽  
The Cost ◽  
Cost Components

Background: An ambulance is a vehicle designed to be able to handle emergency patients, provide first aid and carry out intensive care while on the way to a referral hospital. Ambulance operations require a large amount of funds obtained from APBD funds through tariffs that were passed through the DKI Jakarta Governor Regulation five years ago. For this reason, a new tariff is required to adjust to current conditions. Objectives: The purpose of this study is to calculate the unit cost of ambulance services in DKI Jakarta to be a consideration in the tariff setting policy in DKI Jakarta province. Research Metodes: This study uses a quantitative descriptive approach to obtain information about the unit cost of the Jakarta ambulance production unit. The method used is the calculation of real cost using the basis of the causes of costs. This research was conducted at the DKI Jakarta Emergency Ambulance using secondary data on investment costs, operational costs and maintenance costs in 2018. Results: The total cost of emergency ambulance in 2018 is known that the proportion of three cost components, namely operational costs, is 76%, followed by investment costs of 20% and maintenance costs of 3%. The calculation of the total cost of medical evacuation using the double distribution method is Rp. 98,915,016,805.00 divided by the number of medical evacuations in 2018 of 37,564 activities, the unit cost of medical evacuation for the AGD of DKI Jakarta Health Office is Rp. 2,633,215.00 without subsidies. APBD costs, while if the subsidy component is included in the calculation, the unit cost for one trip to the AGD of the Health Office is Rp. 604,071.00. This is still far above the current tariff of Rp. 450.00, so the cost recovery rate (CRR) is still below. 100%. Conclusion: From the three cost components consisting of investment, operational and maintenance costs,the largest proportion was operational costs at 76%. The Cost Recovery Rate has not reached 100% so that the existing rates have not covered the costs incurred.   Keywords: ambulance; price fixing; unit cost

Synergistic effects of Fe salts and composite additives on anaerobic digestion of dairy manure

2019 ◽  
Vol 136 ◽  
pp. 82-90 ◽  
Author(s):  
Sining Yun ◽  
Chen Zhang ◽  
Yi Wang ◽  
Jiang Zhu ◽  
Xinlei Huang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Synergistic Effects ◽  
Dairy Manure

In-situ prevention of hydrogen sulfide formation during anaerobic digestion using zinc oxide nanowires

2018 ◽  
Vol 6 (1) ◽  
pp. 110-118 ◽  
Author(s):  
Robert Lupitskyy ◽  
Dania Alvarez-Fonseca ◽  
Zachary D. Herde ◽  
Jagannadh Satyavolu
Keyword(s):  
Zinc Oxide ◽  
Hydrogen Sulfide ◽  
Anaerobic Digestion ◽  
Zinc Oxide Nanowires ◽  
Oxide Nanowires

Quantity changes in Pseudomonas species in dairy manure during anaerobic digestion at mesophilic and thermophilic temperatures

2018 ◽  
Vol 21 (3) ◽  
pp. 423-432 ◽  
Author(s):  
Masahiro Iwasaki ◽  
Guangdou Qi ◽  
Yumiko Endo ◽  
Zhifei Pan ◽  
Takaki Yamashiro ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Manure ◽  
Pseudomonas Species
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