111 results about "Increase ph" patented technology

A synergistic composition and method is provided for controlling odor from waste products. The composition comprises a combination of magnesium hydroxide and a sulfide-consuming compound. The method includes adding a sufficient amount of the composition to a waste stream to provide sufficient sulfide-consuming compound to effect immediate removal of sulfide. The composition incorporates a pH elevating and buffering compound, which both increases and buffers the pH. The increased pH serves to reduce both the volatile sulfide species and the volatile fatty acid (VFAs) species. The elevated pH also promotes the growth of naturally occurring bacteria which metabolize the sulfide to an innocuous form. Finally, addition of the composition drives the pH into a range where the growth of sulfide producing bacteria is inhibited. The mixture has surprisingly been found to be synergistic with respect to both control of chemical species that produce odors and corrosion of metals commonly found in sludge dewatering equipment.

A composition includes microstructured water having an increased pH compared to unstructured water. The composition may include dissolved oxygen. The dissolved oxygen may be present in an amount greater than 20 ppm. The microstructured water may have a cluster size of 6-8 molecules, and may have a cluster factor of about at least 30. The microstructured water may have a pH of at least 7.2 when using litmus paper and a pH of at least 8.4 when measured using a pH meter. The composition may include at least one member selected from the group consisting of vitamins, plant extracts, animal extracts, pharmaceutically active agents, flavorants and colorants.

The invention relates to enzymes having xylanase, mannanase and/or glucanase activity, e.g., catalyzing hydrolysis of internal β-1,4-xylosidic linkages or endo-β-1,4-glucanase linkages; and/or degrading a linear polysaccharide beta-1,4-xylan into xylose. Thus, the invention provides methods and processes for breaking down hemicellulose, which is a major component of the cell wall of plants, including methods and processes for hydrolyzing hemicelluloses in any plant or wood or wood product, wood waste, paper pulp, paper product or paper waste or byproduct. In addition, methods of designing new xylanases, mannanases and/or glucanases and methods of use thereof are also provided. The xylanases, mannanases and/or glucanases have increased activity and stability at increased pH and temperature.

The present invention provides magnetically responsive activated carbon, and a method of forming magnetically responsive activated carbon. The method of forming magnetically responsive activated carbon typically includes providing activated carbon in a solution containing ions of ferrite forming elements, wherein at least one of the ferrite forming elements has an oxidation state of +3 and at least a second of the ferrite forming elements has an oxidation state of +2, and increasing pH of the solution to precipitate particles of ferrite that bond to the activated carbon, wherein the activated carbon having the ferrite particles bonded thereto have a positive magnetic susceptibility. The present invention also provides a method of filtering waste water using magnetic activated carbon.

A preparation method of a high-capacity monocrystalline type ternary cathode material comprises steps as follows: S1, a nickel cobalt manganese hydroxide precursor of a core-shell structure is prepared with a coprecipitation method, a loose and porous core is prepared by intermittently introducing a certain quantity of bicarbonate at the initial stage of core making, after core making ends, and loose flaky shells are prepared by substantially reducing the rotation speed and increasing pH; meanwhile, at the core-shell transition stage, a dispersant is added to effectively prevent agglomerationof the shells due to decrease of the rotation speed; S2, the prepared precursor and lithium salt are mixed and calcined once in the oxygen-rich atmosphere at the high temperature, and the monocrystalline type ternary cathode material is obtained. A battery is prepared from the ternary cathode material and has high capacity and good safety performance due to high lithium ion transport efficiency and reduced anisotropy in crystals. The problem of poor capacity of the material because of low lithium ion transport efficiency of monocrystalline type ternary materials is effectively solved. Besides,the monocrystalline type ternary cathode material is prepared through one-time sintering, the preparation procedure is simple, and the production cost is low.

The invention relates to alpha amylases and to polynucleotides encoding the alpha amylases. In addition methods of designing new alpha amylases and methods of use thereof are also provided. The alpha amylases have increased activity and stability at increased pH and temperature.

The invention discloses a preparation method of a supported catalyst for regenerating an amine solution rich in carbon dioxide. The supported catalyst is obtained by loading a catalyst to a carrier. The carrier is gamma-Al2O3. The catalyst is a metal oxide-carrying sulfate radical-type solid superacid catalyst. The preparation method comprises (1) dissolving a metal salt in water, adding gamma-Al2O3 powder into the solution and carrying out mixing to obtain a mixed solution A, (2) increasing pH of the mixed solution A so that the metal salt is hydrolyzed to form precipitates, and aging the precipitates to obtain a mixed solution B, (3) carrying out solid-liquid separation on the mixed solution B, washing the separated solids, and then drying the solids to obtain a substance C, and (4) grinding the substance C to obtain powder, adding the powder into a solution containing sulfate radical ions, carrying out stirring and impregnating, separating the solids and washing, drying and calcining the solids to obtain the supported catalyst. The supported catalyst has excellent catalysis and desorption performances. The supported catalyst has catalytic performance superior to that of traditional catalysts such as H-ZSM-5 and gamma-Al2O3.

A method of disposing waste includes the step of forming a primary waste pond called an Advanced Facultative Pond (AFP). A stable microbiological methane fermentation zone is established within the AFP. The system constitutes a complete primary treatment of organic waste and wastewater that does not require daily sludge handling typically associated with organic waste treatment and disposal The method of the invention converts organic compounds, including settleable solids, into methane. The invention controls sulfide odors from methane fermentation. The invention also provides a method of filtering raw wastewater through a bed of fermenting organic solids suspended by gas evolved in a fermentation zone. Hydrogen sulfide is oxidized in accordance with the invention. The technique of the invention biologically increases pH near the pond surface, thus retaining hydrogen sulfide in solution in the pond water. The biological increasing of the pH level near the pond surface increases the rate of die-away of pathogenic bacteria. The invention transforms proteins and other organic nitrogen compounds to nitrogen gas. The invention also transforms proteins and other organic nitrogen compounds to nitrogen gas; the invention detoxifies chlorinated hydrocarbons and volatile organic compounds; the invention captures and stores gases evolved from methane fermentation; the invention removes heavy metals, while establishing meromixis in fermentation cells or zones within primary wastewater ponds.

The invention discloses a compound solidifier for mucky soil, which includes, by weight, 46% of cement, 34% of slag, 15% of fly ash, and 5% of triethanolamine. In the invention, cement is used as a main solidifying material, the fly ash and the slag are used as alkaline activators, and the triethanolamine is used as a surfactant. The compound solidifier, on the basis of solidification mechanism, aims to increase pH value of soil body, promote procedure of hydration reaction of cement and setting and hardening of a hydrate, and enhance activity of ions participating in the reaction; by selecting the solidifying material and other components, the optimal solidification effect is achieved through a series of reactions. The invention also provides applications of the compound solidifier for mucky soil in solidification treatment of soft soil foundation. In practical engineering, addition amount of the compound solidifier is regulated so as to fit and solidify soft soil in different organic matter content and water content, thereby achieving best solidification and economic effect.

The invention relates to nitrilases and to nucleic acids encoding the nitrilases. In addition methods of designing new nitrilases and method of use thereof are also provided. The nitrilases have increased activity and stability at increased pH and temperature.

The invention relates to alpha amylases and to polynucleotides encoding the alpha amylases, and methods of making and using them. In addition methods of designing new alpha amylases and methods of use thereof are also provided. The alpha amylases have increased activity and stability at increased pH and temperature.

A washing machine includes a washing tub, a water tub, a drive unit, a feed-water unit, a drain unit, a water softening unit, a pH increasing unit, a pH decreasing unit, and a control unit. The water softening unit is disposed between the feed-water unit and the water tub, and is filled with a weak acid cation exchange material having weak acidic cation exchange groups with a pH from 7.5 to 14 at point of zero charge. The pH increasing unit increases the pH of washing water, and the pH decreasing unit decreases the pH of the washing water. The control unit performs the following operations: controlling the pH increasing unit to increase the pH of the washing water while the washing water is being fed; introducing the washing water with the increased pH to the water softening unit to decrease the hardness of the washing water; introducing the washing water with the decreased hardness to the washing tub; controlling, after the washing water is fed, the pH decreasing unit to decrease the pH of the washing water to a value of 5.5 to 7.0; and introducing the washing water with the decreased pH to the water softening unit.

A process system that uses a reduced amount of lime or other base to clarify or purify juice obtained from plant material such as sugar cane, sugar beets, or sweet sorghum. Specifically, apparatus and methods to reduce volatile materials in juice providing a product that has an increased pH requiring the use of less lime or other base to achieve the desired pH values for clarification or purification.