Abstract:
본 발명은 광합성에 의해 수소를 생산할 수 있으며, 3% NaCl의 염분농도에서 광합성이 가능한 로도박터 스페로이데스에 속하는 새로운 균주를 제공한다. 본 발명에 의하면 상기 광합성 세균은 셔틀벡터인 pRK415를 함유할 수 있어 유전자 조작이 가능하며, 수소의 생성능이 종래 알려진 로도박터 스페로이데스 2.4.1 균주에 비하여 4배 이상 높다. 로도박터, 광합성, 수소
Abstract:
A novel microorganism Rhodobacter sphaeroides having excellent hydrogen producing ability is provided to improve productivity of hydrogen from organic wastewater in the presence of high concentration of salts and remove heavy metals from wastewater by accumulating them. The microorganism Rhodobacter sphaeroides KD131(KCTC 12085) produces hydrogen in the presence of 3% NaCl through photosynthesis, wherein Rhodobacter sphaeroides KD131(KCTC 12085) is isolated from the soil adjacent to the sea; and Rhodobacter sphaeroides KD131(KCTC 12085) is capable of harboring a shuttle vector pRK415, thereby easily accomplishing its gene manipulation.
Abstract:
PURPOSE: A method for producing hydrogen from such wet organic waste as food processing dregs, organic sludge and agricultural waste by anaerobic fermentation of Clostridium butyricum is provided. CONSTITUTION: The method is characterized in that anaerobic fermentation process of organic waste is performed at temperature of 35 to 37 deg.C at pH 6 to 7 in the presence of Clostridium butyricum, wherein the Clostridium butyricum is cultured in PYG medium (modified).
Abstract:
본원은 반투과막이 구비된 생물반응기(bioreactor) 중에서 미생물을 배양하는 단계를 포함하며, 상기 막은 상기 미생물은 통과시키지 못하지만, 상기 반응기 중의 배양액은 통과시킬 수 있으며, 상기 배양액 중의 기질의 농도는 상기 반응기 중의 상기 미생물의 농도에 맞추어 조절되는 것인, 반투과막을 이용한 미생물 배양방법을 개시한다. 본원에 따른 반투과막을 이용한 미생물 배양방법은 고농도 배양 및 최적 운전을 통한 연속적 바이오매스의 획득이 가능하여, 미생물을 이용한 유용물질의 생산 예를 들면 박테리아의 지방산 생산 성능을 획기적으로 증가시킬 수 있다.
Abstract:
The present invention relates to a method for producing a gasoline additive from fermented lactic acid and, more particularly, to a method for producing a gasoline additive from fermented lactic acid including a step of precipitating the fermented lactic acid; and a step of generating the gasoline additive through the pyrolysis of the precipitated fermented lactic acid. According to the method of the present invention, the gasoline additive can be effectively produced from fermented organic acid, the process configuration can be simple, and no waste is generated.
Abstract:
본 발명은 수소생산을 증진시키기 위해 배양조건을 최적화한 로도박터 스페로이데스( R. sphaeroides ) KD131을 이용한 수소 생산방법을 제공한다. 본 발명의 수소 생산방법은 초기 균체 농도, 초기 pH, 탄소원 및 질소원을 조절하여 로도박터 스페로이데스 KD131을 배양하는 것을 특징으로 한다. 본 발명에 따르면 배양조건의 최적화를 통해 로도박터 스페로이데스( R. sphaeroides ) KD131의 수소생산능력을 극대화시킬 수 있다.
Abstract:
PURPOSE: A method for preparing biological methane using starfishes is provided to reduce odor and to reduce the capacity of a fermentation tank. CONSTITUTION: A method for preparing biological methane using starfishes comprises: a step of pulverizing the starfishes and collecting supernatant in a fermentation tank; a step of injecting anaerobic acid-producing bacteria and performing first fermentation at 34-37 Deg. C. under an anaerobic condition for 40-55 hours to prepare a first fermentation material containing organic acid as a main ingredient; a step of putting the first fermentation material into a methane fermentor and adding methane-producing bacteria; and a step of performing second fermentation to prepare a second fermentation material. [Reference numerals] (AA) Methane fermentation; (BB) Acid fermentation efficiency 95%; (CC) Acid fermentation; (DD) Leakage; (EE) COD removing rate 80%; (FF) Methane gas converting rate: 71%; (GG) Methane gas generation rate: 0.167m^3/KgVS; (HH) Adding starfishes; (II) Pulverizing and centrifuging; (JJ) Supernatant: 55% COD collection; (KK) Diluting; (LL) Microorganism
Abstract:
PURPOSE: A method for generating hydrogen by anaerobic fermentation of bean curd waste is provided to enhance solubilization rate and to effectively produce hydrogen. CONSTITUTION: A method for generating hydrogen by anaerobic fermentation of bean curd waste comprises: a step of adding 0.5-5% (W/W) of HCl to the bean curd waste as pretreatment; a step of adding 5-20%(V/V) of sewage; and a step of inoculating anaerobic microbes adapted to hydrogen production and fermenting at 50-65°C and a pH of 5-6. The microbes are Thermobacterium thermosaccharolyticum, Clostridium thermosaccharolyticum, Clostridium thermoamylolyticum, Sulfobacillus, or Bacillus.