The present invention relates to an improved process for downstream processing of liquid waste fraction from mammalian, such as animal, waste. More specifically the present invention provides an improved and simplified method for downstream processing of liquid fractions of animal waste in which the nitrogen content is preserved and for inhibiting urease activity in said liquid.

A system and method for reclaiming nutrients from dairy manure includes a centrifuge for separating a liquid fraction of the manure from a solid fraction comprising organic material; a mechanical vapor recompression evaporator (MVR) to receive the liquid fraction from the centrifuge and evaporating the liquid fraction by mechanical vapor recompression to produce ammonia-laden water vapor and a concentrated nutrient slurry; a dryer for drying the nutrient slurry to a selected moisture content to be available as an ingredient in compounded fertilizer; and an ammonia stripping tower assembly to receive ammonia-laden water vapor from the MVR and from it to precipitate ammonium sulphate salt and condense water as separate products.

The invention relates to a method for the purification of lignin, cellulose and hemicellulose obtained from purines, which can be burned in compliance with environmental standards as a substitute for wood. The method of the invention produces a novel bio-fuel.

The present disclosure provides vermicompost made of aquatic plants and a preparation method of the vermicompost. The preparation method includes: mixing aquatic plant residues and fresh cow dung according to a proportion, and crushing the aquatic plant residues while stirring until even mixing; adding earthworms to a mixture of the aquatic plant residues and the cow dung, where the earthworms transform the mixture of the aquatic plant residues and the cow dung in a forest at 15-35? C., and moisture in the mixture is maintained at 65-75% in the process; and after 35-45 days, separating the earthworms and vermicompost, and drying the vermicompost to obtain the vermicompost made of aquatic plants.

The present disclosure provides vermicompost made of aquatic plants and a preparation method of the vermicompost. The preparation method includes: mixing aquatic plant residues and fresh cow dung according to a proportion, and crushing the aquatic plant residues while stirring until even mixing; adding earthworms to a mixture of the aquatic plant residues and the cow dung, where the earthworms transform the mixture of the aquatic plant residues and the cow dung in a forest at 15-35? C., and moisture in the mixture is maintained at 65-75% in the process; and after 35-45 days, separating the earthworms and vermicompost, and drying the vermicompost to obtain the vermicompost made of aquatic plants.

Processes for manufacturing organic fertilizer products, such as liquid and solid organic fertilizer, from animal manure are disclosed, together with the fertilizer products produced therefrom.

Processes for manufacturing organic fertilizer products, such as liquid and solid organic fertilizer, from animal manure are disclosed, together with the fertilizer products produced therefrom.

Novel polyanionic polymers including families of repeat units, such as maleic, itaconic, and sulfonate repeat units. The polymers are at least tetrapolymers and may be in the acid form or as partial or complete salts. The polymers may be synthesized using free radical initiators in the presence of vanadium compounds. The polymers have a variety of uses, particularly in agricultural contexts.

The present invention relates to a livestock excrement sterilizing and drying system comprising including: a grinder for pulverizing livestock excrement so as to increase the drying efficiency for the livestock excrement; a transfer unit for transferring the pulverized livestock excrement; a drying chamber which dries the livestock excrement while rotating in a state where the livestock excrement transferred by the transfer unit is inserted therein; a combustion unit for allowing a combustion gas of a combustion device to be supplied into the drying chamber in order to dry the livestock excrement inserted into the drying chamber; a dried excrement discharge unit for discharging the livestock excrement which has been dried by the combustion gas of the combustion device and has a reduced volume; and an exhaust gas processing unit for filtering an exhaust gas generated in the process of drying the livestock excrement so as to discharge the exhaust gas to the air, wherein the livestock excrement dried in the drying chamber is not burned during heat-exchange with the combustion gas, but only moisture thereof is reduced and microorganisms and odors thereof are removed.

The present invention relates to a livestock excrement sterilizing and drying system comprising including: a grinder for pulverizing livestock excrement so as to increase the drying efficiency for the livestock excrement; a transfer unit for transferring the pulverized livestock excrement; a drying chamber which dries the livestock excrement while rotating in a state where the livestock excrement transferred by the transfer unit is inserted therein; a combustion unit for allowing a combustion gas of a combustion device to be supplied into the drying chamber in order to dry the livestock excrement inserted into the drying chamber; a dried excrement discharge unit for discharging the livestock excrement which has been dried by the combustion gas of the combustion device and has a reduced volume; and an exhaust gas processing unit for filtering an exhaust gas generated in the process of drying the livestock excrement so as to discharge the exhaust gas to the air, wherein the livestock excrement dried in the drying chamber is not burned during heat-exchange with the combustion gas, but only moisture thereof is reduced and microorganisms and odors thereof are removed.