摘要:
Disclosed are methods comprising: (a) first contacting at least a portion of a wastewater stream comprising one or more hydrophilic solutes and one or more crude-oil-associated hydrophobic solutes with an extractant comprising a bi-directional solvent at a first temperature (T1) within 40° C. of the solvent-water critical temperature to form a water-depleted first aqueous solution and a water-enriched first contacting first organic phase; (b) adjusting the temperature of said first organic phase to a second temperature (T2), to form a second organic phase and a second aqueous solution; wherein the absolute value of (T2−T1) is at least 20; (c) separating at least a portion of said one or more crude-oil-associated hydrophobic solutes from said second organic phase; and (d) recycling bi-directional solvent from said second organic phase to said first contacting. Disclosed are also systems.
摘要:
A method of maintaining a bioreactor of a waste material treatment system is disclosed. The method comprises monitoring the condition of bacteria and/or waste material. If the condition satisfies a first set of criteria, bacteria is transferred from a bacterial backup container to the bioreactor. If the condition satisfies a second set of criteria, bacteria is transferred from the bioreactor to the bacterial backup container. In some embodiments of the present invention the method predicts the condition of the bacteria and/or waste material.
摘要:
The present invention addresses the problem of providing a new microorganism that is useful for efficiently decomposing oils and fats, and a use for said microorganism. According to screening results, a new Yarrowia lipolytica having a high capacity to assimilate free fatty acids was successfully obtained. Efficient decomposition of oils and fats is achieved by causing the Yarrowia lipolytica to act under conditions in which fatty acids that are hydrolysis products of oils or fats are present, or under conditions in which oils or fats are decomposed into fatty acids and glycerol.
摘要:
The present invention concerns a process for treatment of industrial waste water containing both easy biodegradable and heavy biodegradable matter wherein the process comprises the two steps of first treating the waste water in a bioreactor wherein a nitrate solution is added and secondly treating the waste water in a chemical oxidation step wherein an oxidizer, permanganate, is added.
摘要:
The present invention discloses a method for use in treating palm oil mill effluent (POME). Said method comprising the steps of: treating the palm oil mill effluents with concentrated butyrate; introducing the treated palm oil mill effluents into a reaction tank (11) with loading rate of at least 1.5 g COD/L/d and at least 4 days of hydraulic retention time; and providing microorganism biomass in the reaction tank so that anaerobic degradation of the palm oil mill effluents treated with butyrate can be performed. Preferably, the optimum condition for degradation of the palm oil mill effluents in the reaction tank is at constant temperature 37° C. with pH value of approximately 6.5-7.5.
摘要翻译:本发明公开了一种用于处理棕榈油粉流出物(POME)的方法。 所述方法包括以下步骤:用浓丁酸处理棕榈油磨浆液; 将经处理的棕榈油磨机废水以至少1.5g COD / L / d的载量和至少4天的水力停留时间引入反应罐(11) 并在反应罐中提供微生物生物质,从而可以进行用丁酸处理的棕榈油磨废水的厌氧降解。 优选地,反应罐中棕榈油磨浆流出物降解的最佳条件是在37℃的恒定温度下,pH值约为6.5-7.5。
摘要:
Disclosed is a soapstock treatment apparatus which can treat a soapstock produced during a plant oil production process within a short period and with a high degree of efficiency. As shown in FIG. 1, the soapstock treatment apparatus includes a reactor 20 configured to oxidatively decompose a soapstock, an electric heating coil 23 configured to heat water in the reactor 20 at 650° C. which is not less than the critical temperature of water, a high-pressure pump 13 configured to pressurize the water in the reactor 20 at 17 Mpa which is less than the critical pressure of water, and a compressor 33 configured to pressurize the water in the reactor 20 at 17 Mpa which is less than the critical pressure of water. Also, an exhaust pipe 41 for discharging a reaction gas generated by the oxidative decomposition treatment and a waste pipe 51 for discharging a solid (inorganic) residue generated by the oxidative decomposition treatment are connected to the reactor 20. Furthermore, a gas-liquid separator 44 for separating the reaction gas into a gas substance and a liquid substance are connected.
摘要:
A for preparing Tyrosol and/or Hydroxytyrosol from oil mill wastewaters.includes: a) Microfiltration (MF), Ultrafiltration (UF). Nanofiltration (NF) and Reverse Osmosis (RO) of the OMW; b) Separation of Tyrosol, Hydroxytyrosol and other phenolic compounds from the concentrated RO; c) Oxidation of the obtained Tyrosol to Hydroxytyrosol in the presence of methyl rhenium trioxide and of hydrogen peroxide in a protic solvent.
摘要:
A novel processing method of producing non-oily dissolved air flotation (DAF) sludge or vegetable soap stock sludge product is provided. The oily sludge from a dissolved air flotation unit in a food waste water treatment plant or from vegetable soap stock in a vegetable oil processing plant is converted into non-oily property by alkali and water absorbent to form fatty acid salts. The non-oily product is dried by a normal dryer. The issues of pollution, waste water, and processing cost for DAF sludge are resolved or reduced by this practical and economical processing method. Also the product properties are improved. The method could save millions of dollars for food and feed industries.
摘要:
A crystal substance formed by precipitating as fibrous aggregates by making a metal aliphatic carboxylate dissolve completely in pure water, stirring, and gradually cooling the resulting solution. A method of preparing the fibrous crystal aggregates. A material for recovering flowing oil and method of recovering flowing oil by using the fibrous crystal aggregates. A material for solidifying liquid hydrocarbon, waste tempura oil and edible oil and method of solidifying liquid hydrocarbon, waste tempura oil and edible oil by using the fibrous crystal aggregates. A method of preparing the solidifying material.
摘要:
Systems and methods to enhance the removal of inorganic contaminants, including metals, from hydrocarbon feedstocks at a refinery. One or more embodiments of such systems and methods may be used to provide a renewable hydrocarbon feedstock having a reduced amount of metal contaminants. The reduction of metal contaminants in the renewable hydrocarbon feedstock mitigates catalyst fouling and/or deactivation during downstream refinery processing of the renewable hydrocarbon feedstock.