35 results about "Sulfurifustis" patented technology

The invention discloses a bacillus and an application thereof in nitrogen removal and sulfur removal of a culture water body, and belongs to the technical field of environmental microorganisms and environmental engineering. The strain is named as (Bacillus sp.)SC16, and has a preservation number of GDMCC No:60942. The strain is obtained by screening bottom mud of an aquaculture pond, do not have ecological safety risk when being applied to aquaculture water again, and accords with biological safety regulations. The strain has autotrophic and denitrification performance, can utilize inorganic carbon as a unique carbon source and utilize ammonia nitrogen, nitrate nitrogen or nitrite nitrogen as a unique nitrogen source for metabolism, and thus achieves the purpose of removing the nitrogen source; the strain has sulfur removal performance, can utilize sulfides as an electron donor to oxidize the sulfide to obtain energy; and meanwhile, the strain has strong tolerance to nitrite and has good growth. The strain can be prepared into a microecological preparation to be applied to nitrogen removal and sulfur removal treatment of a culture water body, has a wide application prospect, and has good social benefits.

The invention belongs to the technical field of wastewater treatment, and provides a domestication culture method of sulfur autotrophic short-cut denitrification sludge, wherein the method comprises the following steps: S1, seed sludge selection; S2, an earlier stage of domestication culture; S3, a middle stage of domestication culture; S4, a later stage of domestication culture; and S5, at the last stage of domestication culture, when the sulfur autotrophic denitrifying bacteria in the sludge become dominant bacteria, enabling sludge domestication to be successful, and enabling the proportion of the sulfur autotrophic denitrifying bacteria Thiobacillus sp. to be larger than 40%. The method disclosed by the invention is simple to operate, can be realized only by adding a trace amount of N-dodecanoyl-L-homoserine lactone and combining with water quality adjustment, and is low in operation cost; and the domestication method is rapid and efficient, nitrous accumulation can be achieved within 40 days, sulfur autotrophic short-cut denitrification sludge can be domesticated, and the method can be used for combined treatment of mixed wastewater containing ammonia nitrogen, nitrate nitrogen and sulfide.

The invention relates to a mixed nutritional denitrification method based on sulfur reduction and sulfur autotrophic denitrification. The method comprises the following steps of: 1, dividing raw wastewater containing sulfate into a part A and a part B; 2, inputting the part A of raw wastewater into a sulfate reduction reactor; 3, inputting the part B of raw wastewater and effluent supernatant of the sulfate reduction reactor into an anoxic tank, and communicating a water outlet of the anoxic tank with an aerobic tank through a sulfur autotrophic tank, so as to enable nitrification liquid to flow back to the anoxic tank from the tail of the aerobic tank; and 4, communicating a water outlet of the aerobic tank with a sedimentation tank, and carrying out mud-water separation on the wastewater treated by the aerobic tank through the sedimentation tank. According to the method provided by the invention, the total dissolved sulfide generated by sulfate in the raw wastewater under the action of SRB is fully utilized as a denitrification matrix; and the problem that the synergistic effect is singly exerted and the overall effect of the system is neglected in the existing research is solved.

A sulfurization detection resistor includes: a rectangle-shaped insulating substrate; pair of front electrodes formed at both ends facing each other on a surface of the insulating substrate; plurality of sulfurization detection conductors arranged in parallel between the paired front electrodes; plurality of resistors connected between the ends of each of the sulfurization detection conductors and the paired front electrodes; and sulfide gas impermeable protective film that covers all of the resistors and some of the sulfurization detection conductors, wherein each of the sulfurization detection conductors has a sulfurization detection unit exposed from a window hole in the protective film; and by covering the sulfurization detection units with different types of sulfurization rate adjustment layers formed of an acrylic resin, a silicon resin, and the like, timing of disconnection is set so as to vary in response to a cumulative amount of sulfurization in each of the sulfurization detection units.

The present invention relates to a curable composition and an optical material comprising the same, and more particularly, to a curable composition for forming a high refractive index optical material and an optical material comprising the same, the curable composition comprising an episulfide compound; sulfur-containing organic particles containing a specific content of sulfur atoms; and a reducing agent.

Embodiments of the invention disclose a fuel oil sulfur content treatment method and a related device, which are used for conducting decomposition processing on sulfides generated by combustion of fuel oil with different sulfur contents, so that the failure probability of a catalyst in a fuel oil device is reduced. The method provided by the embodiments of the invention comprises the following steps of determining first conversion efficiency of the catalyst in the fuel oil device on NOX gas; judging whether the first conversion efficiency is smaller than or equal to a first preset value; if yes, controlling the opening degree of a throttle valve of the fuel oil device to be reduced in order to enable the amount of air entering an engine cylinder of the fuel oil device to be smaller than the amount of air needed by sufficient combustion reaction in the cylinder and the combustion reaction in the cylinder to deteriorate, and inputting a large amount of generated waste gas and residual energy into the catalyst to increase the internal temperature of the catalyst ; detecting the internal temperature of the catalyst in real time; judging whether the internal temperature of the catalystis not less than a second preset value or not at the first moment; and if not, controlling the opening degree of the throttle valve to be reduced in order to reduce the amount of air entering the engine cylinder.

The invention provides a sulfur-loaded hollow nano polyhedron octasulfide nine-cobalt/carbon fiber composite material and a preparation method and application thereof, and the preparation method comprises the following steps: firstly growing a polyhedron ZIF-67 on a carbon fiber cloth substrate by adopting a self-template method, and then vulcanizing to obtain a Co9S8/carbon fiber composite material. On one hand, the Co9S8/carbon fiber composite material has a relatively large internal space inside, so that the loading quality of sulfur is ensured, and the volume expansion of a lithium polysulfide Li2Sx substance in the circulation process is buffered; on the other hand, the material can be strongly combined with polysulfide and limit outward diffusion of the polysulfide, and the porous shell is beneficial to transportation of Li < + > and electrons. And soaking the Co9S8/carbon fiber composite material in a carbon disulfide solution of sulfur, drying, and performing sulfur fumigation to obtain the sulfur-loaded hollow nano-polyhedron octasulfide nine cobalt/carbon fiber composite material, and the carbon fiber cloth is used as a substrate, so that the overall conductivity is improved. The composite material positive electrode has high discharge capacity and high cycle stability due to the physical and chemical dual-function synergistic fixation effect.

Provided is a technology for producing a sulfur-modified chloroprene rubber which has excellent compression set and excellent wear resistance, while being reduced in heat generation. Provided is a sulfur-modified chloroprene rubber composition that is obtained by having a sulfur-modified chloroprene rubber, which contains at least a sulfur-modified chloroprene polymer and an emulsifying agent, contain a sulfenamide which may have an arbitrary substituent in an amount of 0.0005-0.01 part by mass per 100 parts by mass of the sulfur-modified chloroprene rubber.

The invention relates to a breeding method and application of a desulfurization strain with high sulfur oxidation performance, the breeding method is based on a plasma treatment technology, high sulfide conditions are taken as screening pressure, a plurality of complete bacterial colonies are selected by using a plate with gradient sulfide concentration, the change of the sulfur oxidation performance of each strain is investigated through culture of high-concentration sulfide, the sulfur oxidation performance of the cells is determined through a respiration determination method, and finally a target strain is screened out. According to the breeding method, the strain with good desulfurization performance and high treatment efficiency can be bred, and compared with a wild strain, the sulfur oxidation performance of the bred strain is improved, sulfate radical accumulation is remarkably reduced, and the elemental sulfur generation rate is increased, so that the system is low in energy consumption and low in operation cost, deep popularization of biological desulfurization is powerfully promoted, the robustness of biological desulfurization is enhanced, and a very valuable thought is provided for the biological desulfurization technology to deal with the problem of complex and changeable gas components in practical application.

The invention provides a preparation method of sulfur-containing porous Yolk-shell structure particles, which comprises the following steps: mixing elemental sulfur with an oil phase solvent to obtain an oil phase; mixing an emulsifier with water to obtain a water phase; mixing the oil phase and the water phase, and emulsifying to obtain a mixed solution; the oil phase solvent in the mixed solution is evaporated, and the sulfur-containing porous Yolk-shell structure particles are obtained. A self-emulsifying method is adopted, the elemental sulfur and the oil-phase solvent are used as an oil phase, the emulsifier and water are used as a water phase, emulsification is performed to form core-shell structure particles with the oil phase coated with the emulsifier, then the oil-phase solvent is evaporated, the sulfur-containing Yolk-shell structure particles with pore structures on the surfaces can be obtained without etching, the porosity is low, and the preparation method is simple and easy to implement. And the shuttle effect of polysulfide can be obviously inhibited while the lithium ion transmission is not influenced.