The present invention relates to compositions and methods for the remediation of contaminated solids and liquids. In particular, embodiments of the present invention relate to the bioremediation of solids and liquids by a composition comprising a biocatalyst or mixture of biocatalysts. The present invention also relates to methods for producing the bioremediation compositions and methods for applying the bioremediation compositions to contaminated sites, including treatment, storage, and disposal facilities, as well as various contaminated water sources, such as aquifers and reservoirs.

The subject invention provides methods for improving the treatment of effluents and waste matter produced during food processing and production. In particular, the subject invention provides methods for remediating fats, oils and greases (FOG), suspended solids, proteins, and other organic matter that are discharged from plants that process, for example, meats, poultry, seafood, dairy and plant-based oils. The methods of the subject invention utilize a customized microbial cocktail comprising facultative anaerobes, in combination with one or more microbial growth by-products, e.g., enzymes and/or biosurfactants, to digest and/or liquefy food processing waste matter.

The present invention relates to compositions and methods for the remediation of contaminated solids and liquids. In particular, embodiments of the present invention relate to the bioremediation of solids and liquids by a composition comprising a biocatalyst or mixture of biocatalysts. The present invention also relates to methods for producing the bioremediation compositions and methods for applying the bioremediation compositions to contaminated sites, including treatment, storage, and disposal facilities, as well as various contaminated water sources, such as aquifers and reservoirs.

A method and a ventilation system includes ventilation ducts, a control system and at least one spray nozzle. The at least one spray nozzle is configured to spray a liquid mist onto at least one portion of an inner surface of the ventilation system. The liquid mist contains a culture of microorganisms adapted for biologically treating fat, oil and grease present on at least one portion of the inner surface of the ventilation system, thereby providing for partial biodegradation of the fat, oil and grease present on the at least one portion of the inner surfaces of the ventilation system.

The microorganism preparation feeding method of the invention employs an automatic microorganism preparation feeding apparatus which includes a cold storage apparatus for refrigeration-storing a seed microorganism belonging to the aerobic microorganism group including at least one species of aerobic microorganisms capable of decomposing oil and fat contained in oil/fat-including wastewater and a growth tank for growing the seed microorganism so as to produce the microorganism preparation, wherein the seed microorganism belonging to the aerobic microorganism group is maintained in a live state by means of the cold storage apparatus, the seed microorganism is periodically grown by means of the growth tank so as to produce a predetermined microorganism preparation, and the produced predetermined microorganism preparation is fed to the oil/fat-including wastewater. The method includes refrigeration-storing, as the seed microorganism, a microorganism whose population density is 1×10.sup.7 CFU/mL to 5×10.sup.9 CFU/mL in the cold storage apparatus; growing, as a source material, the seed microorganism of a predetermined volume by means of the growth tank so as to produce the predetermined microorganism preparation whose volume is 50 to 500 times the predetermined volume of the seed microorganism and whose population density is 1×10.sup.7 CFU/mL to 2×10.sup.10 CFU/mL; and feeding the produced microorganism preparation to the oil/fat-including wastewater.

Processes and system are provided for digesting biosolids in a multistage digestion system. The processes and system are well suited for producing Class A biosolids and biogas containing a high content of methane. Methods and systems are also provided for recovery of phosphorus from wastewater and biosolids.

A method for eliminating legionellae from water of a cooling circuit of industrial plants, in particular of a hot rolling mill, is disclosed. The water is loaded with organic substances and inorganic particles. In a further aspect, the use of bacteria for eliminating legionellae from a water of a cooling circuit of an industrial plant is disclosed.

The present disclosure provides a technique for decomposing an oil or fat containing a trans-fatty acid. A novel lipase according to the present disclosure has an activity to decompose an oil or fat containing a trans-fatty acid. The lipase according to the present disclosure comprises a polypeptide comprising an amino acid sequence represented by SEQ ID NO: 4, 11, 16 or 18, or a polypeptide encoded by a nucleotide sequence represented by SEQ ID NO: 1, 7, 15 or 17, or a polypeptide having at least 70% sequence homology with the above-mentioned polypeptides. The lipase has an ability to decompose an oil or fat even at a high temperature, and is found to have excellent thermal stability. The lipase according to the present disclosure is useful for an oil treatment, such as the treatment of wastewater, a detergent, and a technique for modifying a fat or for producing an oil or fat.

The present disclosure provides a new microorganism with an ability to decompose oil and fat. In one embodiment, the microorganism is from the family Burkholderiaceae. In one embodiment, the microorganism is from the genus Burkholderia. In one embodiment, the microorganism is Burkholderia arboris, or Burkholderia cepacia complex, or the like. In one embodiment, the microorganism of the present disclosure has an ability to assimilate trans fatty acid. In one embodiment, the microorganism of the present disclosure has an ability to decompose trans fatty acid. In one embodiment, the microorganism of the present disclosure has an ability to decompose trans fatty acid-containing oil and fat. In one embodiment, the microorganism of the present disclosure has an ability to assimilate trans fatty acid-containing oil and fat.

Described is a microorganism having an excellent effect of reducing oils and fats, and particularly, Asterotremella humicola strain 2-141-1 (Accession No. NITE BP-02641) or a microorganism having the same microbiological properties as those of the foregoing strain. Also described is an effluent treatment method including bringing the microorganism into contact with an effluent including oils and fats.