11 results about "Volatile phenols" patented technology

The invention relates to an organic combined polluted underground water in-situ remediation method based on a micro-nano iron-based material. The method comprises the following steps: acquiring underground water pollution information; establishing a composite reaction zone at a preset position, and constructing a reduction-oxidation chain reaction system; and operating the composite reaction zone, collecting monitoring data, and optimizing the composite reaction zone until the composite pollution is degraded and removed to a preset value. Through series reaction of powerful reduction of the micro-nano iron-based material and advanced oxidation of the iron-based activated persulfate, the performance of the micro-nano iron-based material serving as a strong reduction material and an active agent is fully played, pollutants such as halogenated hydrocarbon in underground water are sequentially subjected to reduction degradation, pollutants such as benzene series and volatile phenol are sequentially subjected to oxidative degradation, and the pollution to the underground water is reduced. Effective management and control of underground water combined pollution of medical and chemical parks and enterprises are realized; a monitoring well is configured based on a composite reaction zone, and remediation materials are discontinuously added in combination with management and control conditions, or other management and control materials are flexibly selected, so that long-term management and control of groundwater pollution risks are realized.

The application provides a strain of Candida zeylanoides, and applications of the strain in inhibiting Botrytis cinerea and in wine brewing, the Candida zeylanoides is numbered SIVE8902, has been preserved in the China Center for Type Culture Collection on July 22, 2024, the preservation number is CCTCC NO:M 20241637, and the Latin name is Starmerella bacillaris The strain has a strong inhibiting effect on Botrytis cinerea in grape fresh fruits and vineyards, can reduce the growth and reproduction of Botrytis cinerea in the fruits, and meanwhile, compared with single fermentation of Saccharomyces cerevisiae, the sequential fermentation of the Candida zeylanoides and Saccharomyces cerevisiae adds ethylguaiacol and 4-ethyl-2-methoxyphenol, adds spice and honey flavors to the wine, greatly improves the total amount of volatile phenolic compounds in the wine, and improves the wine quality.

The invention relates to the technical field of wastewater treatment, and particularly discloses a deep treatment method for coking wastewater. The invention discloses a deep treatment method for coking wastewater. The deep treatment method comprises the following steps: pretreatment, catalytic ozonation, buffer regulation, biological activated carbon treatment and sand filtration. In catalytic ozonation, the catalyst is prepared by fixing Cu-Mn composite metal on the surface of a gamma-Al2O3 ceramic ball porous carrier through a dipping-calcining method; the molar ratio of Cu to Mn in the Cu-Mn composite metal is 1: (1-4); the biological activated carbon is obtained by dipping activated carbon in a microbial bacteria solution for reaction; the microbial liquid consists of flavobacterium with the concentration of 1 * 10 < 7 >-5 * 10 < 7 > CFU / mL and rhodococcus with the concentration of 5 * 10 < 8 >-3 * 10 < 9 > CFU / mL. According to the technical scheme, the coking wastewater is treated, and the removal rate of COD, ammonia nitrogen, volatile phenol and suspended solids in the coking wastewater is effectively increased.

The invention discloses a method for rapidly determining various phenolic acid substances in a fermentation product, and belongs to the technical field of detection. The determination method comprises the following steps: 1. Taking a to-be-detected substance, and extracting phenolic acid substances in the to-be-detected substance through an alcohol precipitation-SAX solid-phase extraction combined technology to obtain a to-be-detected sample; analyzing the to-be-detected sample by adopting ultra-high performance liquid chromatography tandem triple quadrupole mass spectrometry to obtain the content of the target substance in the to-be-detected substance; the target substance is a non-volatile phenolic acid substance. Accurate quantification of trace and trace caffeic acid, dihydrocaffeic acid, ferulic acid, chlorogenic acid, gallic acid, vanillic acid, syringic acid, p-coumaric acid, salicylic acid and (+ / -)-catechin in fermentation products within 8-15 min is achieved by combining impurity removal and concentration pretreatment with ultra-high performance liquid chromatography tandem triple quadrupole mass spectrometry. According to the method, the pretreatment mode is convenient to operate, the detection process is fast, and the detection result is accurate.

The present application relates to a kind of coal chemical industry wastewater multistage processing method, belong to wastewater treatment technical field.The organic matter removal agent in the coal chemical industry wastewater multistage processing method of the present application has good removal effect to multiple organic matters (including lipophilic organic matter volatile phenol, thiophene, pyridine, quinoline, furan, naphthalene, anthracene, phenanthrene and hydrophilic organic matter carbazole, indole and pyrrole) in coal chemical industry wastewater of different pH.The coal chemical industry wastewater multistage processing method of the present application is not sensitive to the pH of wastewater, and the applicability is wider, can process multiple different pH wastewater, save pretreatment step, reduce processing cost.The carbonic acid dimethyl ester and amide oxime in the organic matter removal agent in the coal chemical industry wastewater multistage processing method of the present application have synergistic effect, both can play synergistic effect, improve the removal rate of multiple organic matters in coal chemical industry wastewater.

The invention belongs to the field of water treatment, particularly relates to solar energy treatment of volatile phenol wastewater, and particularly relates to amphiphilic porous hydrogel as well as a preparation method and application thereof. Specifically, an amphiphilic polymer, polyvinyl alcohol serving as a base material and a carbon nano tube serving as a photo-thermal material are subjected to system structure adjustment through a Pickering emulsion template method; and carrying out crosslinking in a physical or / and chemical manner to obtain the amphiphilic porous hydrogel. The prepared hydrogel is applied to a solar device to treat volatile phenol wastewater. According to the solar evaporator, by means of the porous structure and the chemical property of the solar evaporator, the excellent water evaporation rate and the efficient photo-thermal conversion efficiency are achieved, and purified water is effectively extracted from phenol wastewater. The method has the advantages that the preparation process is simple and convenient, the cost is low, the method is environment-friendly, the method has wide application potential in the field of water purification, and a new idea is provided for solving the problem that VOCs are difficult to remove in the solar distilled water treatment process.

The invention provides a volatile phenol automatic analysis device, which comprises an execution mechanism, which comprises a mechanical arm terminal and a pipeline structure, and the mechanical arm terminal is connected with the pipeline structure; the valve body mechanism comprises a first valve body structure, a second valve body structure, a third valve body structure and a fourth valve body structure, the first valve body structure and the second valve body structure are respectively connected with the pipeline structure, and the third valve body structure is respectively connected with the fourth valve body structure and the pipeline structure; the distillation mechanism is connected with the fourth valve body structure. The pipeline structure acts through the mechanical arm terminal, after a sample is input, the distillation mechanism automatically conducts distillation collection through cooperation of a third valve body structure and a fourth valve body structure, then under cooperation of a first valve body structure and a second valve body structure, reagents are automatically added, mixing, automatic spectrum detection and the like are conducted, and finally data are processed and output. In the whole process, participation of testers can be reduced, contact between the testers and toxic reagents is reduced, and the sample treatment accuracy, reliability and efficiency are improved.

The invention discloses a sewage treatment method, and belongs to the technical field of water, wastewater, sewage or sludge treatment. According to the invention, halotolerant bacillus, halomonas sphaeromonas and an embedding medium containing a nano synergist are combined to finally form a carrier, and an immobilized strain preparation is obtained. When the compound is applied to a high-salt organic wastewater degradation experiment, COD (Chemical Oxygen Demand) in water quality indexes of a compound group is 51.3 mg / L, ammonia nitrogen is 5.9 mg / L, total nitrogen is 10.6 mg / L, and volatile phenol is 0.23 mg / L, so that the compound group is superior to a salt-tolerant bacillus group using a single strain, a stone spring halomonas group using a single strain, a magnesium synergist group using nano magnesium particles and a zinc synergist group using nano zinc particles. Therefore, after the halotolerant bacillus and the halomonas

The invention discloses a preparation method of polymer hydrogel for detecting volatile phenolic compounds, and the method at least comprises the following steps: 1, dispersing polyethylene glycol, polyvinylpyrrolidone and acrylamide in water, adding an indicator solution and an initiator, reacting, and adding an alkaline reagent to obtain transparent hydrogel; 2, the transparent hydrogel obtained in the step 1 is soaked in water and dried, the polymer hydrogel for detecting the volatile phenolic compounds is obtained, and indicators in the indicator solution are 4-aminoantipyrine and potassium ferricyanide. The hydrogel can react with volatile gas of phenolic compounds at room temperature, is high in sensitivity, good in stability and visible in result, and is suitable for application scenes such as timely and effective monitoring of the volatile phenolic compound emission process in related factories.

The present application relates to sewage treatment technical field, disclose a kind of oil refining stripping purification water sewage resource utilization method, the method comprises the following steps: refinery sulfur-containing ammonia-containing acidic water is divided into high phenolic acidic water and low phenolic acidic water according to the concentration of volatile phenol contained;The high phenolic acidic water is treated by first stripping, and high phenolic stripping purification water is obtained;The low phenolic acidic water is treated by second stripping, and low phenolic stripping purification water is obtained;The high phenolic stripping purification water and low phenolic stripping purification water are respectively reused.The present application adopts high phenolic stripping purification water and low phenolic stripping purification water stripping purification water source head quality collection and double-tower device quality processing, realizes the quality direct reuse mode of high water high use low water low use, system improves the stripping purification water sewage resource utilization efficiency of refinery, realizes the maximum utilization of refinery stripping purification water sewage resource.

The invention discloses a preparation method of a colorimetric detection card for volatile phenolic compounds, and the method at least comprises the following steps: I, mixing ZrCl4, 2-aminoterephthalic acid, ethanol and formic acid, and reacting to obtain an MOFs material UiO-66-NH2; iI, the MOFs material UiO-66-NH2 obtained in the step I, ethyl alcohol and 2, 6-dichloroquinone-4-chlorimine are mixed and stirred, and the MOFs material UiO-66-NH2 in which the 2, 6-dichloroquinone-4-chlorimine is packaged is obtained; and step III, mixing the MOFs material UiO-66-NH2 packaged with the 2, 6-dichloroquinone-4-chloroimine obtained in the step II with ethanol, and coating a substrate with the mixture to obtain the colorimetric detection card for the volatile phenolic compounds. The constructed colorimetric detection card is high in stability, long in storage life, high in sensitivity and simple and convenient to operate.