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5116761 Apparatus for preparing compost from manure by fermentation
528
PATENT ABSTRACTS
5114586
5116550
SANITATION SYSTEM
M E T H O D OF MAKING BIODEGRADABLE FREE FILL FOAM PACKING MATERIAL
Frank Humphrey A sanitation system for treating a black water stream and a grey water stream. The black water stream is inputted into a black water digester wherein the black water stream is aerobically digested to produce a treated black water stream and the treated black water stream is discharged from the black water digester. The treated black water stream is inputted into a black and grey water digester and the grey water stream also is inputted into the black and grey water digester. The treated black water stream and the grey water stream are aerobically digested in the black and grey water digester to produce a treated black and grey water stream and the treated black and grey water stream is outputted from the black and grey water digester.
Newton B Perkins Biodegradable free fill expanded polyurethane foam packing materials are formed by pumping liquid starch or sugar, diisocyanate, polyots and a catalyst into a mixing head. The mixture is released from an exit port in the mixing chamber as a sticky material. At predetermied intervals air blasts chop the sticky material mass from the exit port. The material beings expanding as it drops through a curing chamber against upward warm air currents. When the materials expand to full size and dry to a non-tacky surface, the materials are released from the chamber and collected for use as packing materials. The materials have a bionutrient starch or sugar content of about 40% or more, making them readily biodegradable by microbes. The polyurethane components are broken down into very small sizes and convert to urea, making the products highly suitable for disposal in landfills and as soil amendment and fertilizers.
5116761
5116506 S U P P O R T AERATED BIOFILM REACTOR Kenneth J Williamson, Sandra Woods, Stuart E Strand assigned to Oregon State University A gas permeable membrane divides a reactor vessel into a liquid compartment and a gas compartment. A biofilm is grown on the gas permeable membrane on the liquid side of the membrane. Teh gas permeable membrane is supported by the structure of the membrane itself. The biofilm is chosen from bacteria to degrade cetain pollutants by means of anaerobic fermentation, aerobic heterotrophic oxidation, dehalogenation, and hydrocarbon oxidation. This is accomplished by means of oxygen and alternate gases (i,e., methane) through the gas permeable membrane to certain bacteria growing on the liquid side of the gas permeable membrane.
APPARATUS FOR PREPARING C O M P O S T F R O M M A N U R E BY FERMENTATION Gerrit Groenenboom, Biddinghuizen, Netherlands assigned to Groenenboom Beheer B V In the procedure for producing compost from manure by means of fermentation, in which an oxygen-containing gas and also a gaseous and/or vaporous phase originating from the manure is passed through the manure, the temperature of the manure rises. In order to avoid the temperature rising too high, the gaseous and/or vaporous phase is subjected to cooling outside of the manure to form an ammonia-containing aqueous phase and a residual gas phase, Furthermore, the ammonia is evaporated from the aqueous phase and supplied to the manure along with the residual gas phase. In this way, the ammonia which was hitherto lost in the atmosphere can also be converted into nitrates in the manure, resulting in a higher quality for the manure. Furthermore, less ammonia is discharged in the environment, resulting in less acidification.
PATENT ABSTRACTS
5114586
5116550
SANITATION SYSTEM
M E T H O D OF MAKING BIODEGRADABLE FREE FILL FOAM PACKING MATERIAL
Frank Humphrey A sanitation system for treating a black water stream and a grey water stream. The black water stream is inputted into a black water digester wherein the black water stream is aerobically digested to produce a treated black water stream and the treated black water stream is discharged from the black water digester. The treated black water stream is inputted into a black and grey water digester and the grey water stream also is inputted into the black and grey water digester. The treated black water stream and the grey water stream are aerobically digested in the black and grey water digester to produce a treated black and grey water stream and the treated black and grey water stream is outputted from the black and grey water digester.
Newton B Perkins Biodegradable free fill expanded polyurethane foam packing materials are formed by pumping liquid starch or sugar, diisocyanate, polyots and a catalyst into a mixing head. The mixture is released from an exit port in the mixing chamber as a sticky material. At predetermied intervals air blasts chop the sticky material mass from the exit port. The material beings expanding as it drops through a curing chamber against upward warm air currents. When the materials expand to full size and dry to a non-tacky surface, the materials are released from the chamber and collected for use as packing materials. The materials have a bionutrient starch or sugar content of about 40% or more, making them readily biodegradable by microbes. The polyurethane components are broken down into very small sizes and convert to urea, making the products highly suitable for disposal in landfills and as soil amendment and fertilizers.
5116761
5116506 S U P P O R T AERATED BIOFILM REACTOR Kenneth J Williamson, Sandra Woods, Stuart E Strand assigned to Oregon State University A gas permeable membrane divides a reactor vessel into a liquid compartment and a gas compartment. A biofilm is grown on the gas permeable membrane on the liquid side of the membrane. Teh gas permeable membrane is supported by the structure of the membrane itself. The biofilm is chosen from bacteria to degrade cetain pollutants by means of anaerobic fermentation, aerobic heterotrophic oxidation, dehalogenation, and hydrocarbon oxidation. This is accomplished by means of oxygen and alternate gases (i,e., methane) through the gas permeable membrane to certain bacteria growing on the liquid side of the gas permeable membrane.
APPARATUS FOR PREPARING C O M P O S T F R O M M A N U R E BY FERMENTATION Gerrit Groenenboom, Biddinghuizen, Netherlands assigned to Groenenboom Beheer B V In the procedure for producing compost from manure by means of fermentation, in which an oxygen-containing gas and also a gaseous and/or vaporous phase originating from the manure is passed through the manure, the temperature of the manure rises. In order to avoid the temperature rising too high, the gaseous and/or vaporous phase is subjected to cooling outside of the manure to form an ammonia-containing aqueous phase and a residual gas phase, Furthermore, the ammonia is evaporated from the aqueous phase and supplied to the manure along with the residual gas phase. In this way, the ammonia which was hitherto lost in the atmosphere can also be converted into nitrates in the manure, resulting in a higher quality for the manure. Furthermore, less ammonia is discharged in the environment, resulting in less acidification.