PDF Publication Title:
Text from PDF Page: 009
with an operator cost $70 per hour. Bion provides the management and marketing of the "Bion Soils". When the material is dry and sold a $5 per cubic yard payment is given to the farmer. The average amount sold per year is 1200 cubic yards or about 0.5 cubic feet per cow per day. The liquids from the shallow solid settling ponds outlet into the 25 foot deep facultative lagoon. There is evidence of biological activity since fairly continuos gas bubbles up in the lagoon. The liquids are stored in the facultative lagoon, pumped to an additional 1.5 million gallon waste storage pond, and then applied to the 440 acres of farmed land from both the satellite storage as well as from the facultative lagoon. The lagoon holds 2 million gallons of waste water. An intake suspended two feet below the surface recycles the waste water through a 10 Hp self priming closed impeller, centrifugal pump, costing $1,880, to a holding tank 27 feet higher in elevation than the barn. This 20,000 gallon holding tank provides the flush water to clean the barn. The pump can deliver 100 gallons a minute and runs 20 hours per day. The electric rate on this farm is 5.5 cents per kW from an electric co-op. By using this recycled water, only the water from the milking center, silage leachate, and precipitation is added to the manure system. The farm's records show that the amount of waste water spread on the fields from the system for 1997 was about equal to the manure and wastewater added. One of the perceived draw backs to this system is the extra water handling from the surface area of the wetland. There are about twelve acres that would add precipitation and runoff to the site and about 3.5 acres of surface area for evaporation. There is the possibility that the biological reactions in the wetland area increase the evaporation to cancel out the extra precipitation. An unknown amount of water has overflowed from the facultative lagoon in extreme events. An irrigation pump and reel with a hard hose and big gun applicator will be purchased to apply the manure to growing crops. There is a slight musty odor as the effluent is irrigated. The Bion system should reduce the weed seeds, and some of the pathogens present in the manure. Effects of unpalatableness from manure spread on growing crops should also be reduced. The low solid content of the effluent from the facultative lagoon should make the irrigation equipment run smoothly. Irrigation costs have been estimated from other operations at thirty-four dollars per hour. They were calculated from a 100 Hp chopper pump, 1.23 operators, 1 mile of portable pipe, and a tractor run 23 % of the time to set up the traveling gun reel. Samples of the solid leaving the farm and the liquid effluent being applied to the fields were taken in this system. There is a significant variation in these samples from ones taken in 1997. There are differences due to the weather and the uncontrolled nature of the biological processes that will make the nutrient concentrations and the volume of waste water vary considerably. Dilution by precipitation, milking center wash water, and silage leachate as well as settling may have distorted the nutrient contents. Table 3 shows the percentages from each sample from the spring of 1998. 9PDF Image | ANAEROBIC DIGESTION AND WETLAND TREATMENT CASE STUDY: COMPARING TWO MANURE ODOR CONTROL SYSTEMS FOR DAIRY FARMS
PDF Search Title:
ANAEROBIC DIGESTION AND WETLAND TREATMENT CASE STUDY: COMPARING TWO MANURE ODOR CONTROL SYSTEMS FOR DAIRY FARMSOriginal File Name Searched:
biogas07.pdfDIY PDF Search: Google It | Yahoo | Bing
Capstone Turbine and Microturbine: Capstone microturbines used and new surplus for sale listing More Info
Consulting and Strategy Services: Need help with Capstone Turbine, sizing systems, applications, or renewable energy strategy, we are here to assist More Info
Container Lumber Dry Kiln: Since 1991 developing and innovating dry kilns using standard shipping containers More Info
Supercritical CO2 Lumber Dry Kiln: Compact fast drying in 3 days or less for small amounts of wood and lumber drying More Info
BitCoin Mining: Bitcoin Mining and Cryptocurrency... More Info
Publications: Capstone Turbine publications for microturbine and distributed energy More Info
FileMaker Software for Renewable Energy Developing database software for the renewable energy industry More Info
CO2 Gas to Liquids On-Demand Production Cart Developing a supercritical CO2 to alcohol on-demand production system (via Nafion reverse fuel cell) More Info
Stranded Gas for low cost power Bitcoin Mining Using stranded gas for generators may provide breakthrough low power costs for cryptocurrency miners. More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)