The present invention relates to a method for treating a cellulose molding, which is characterized in that the molding is brought in contact with an alkaline dispersion, which comprises undissolved chitosan particles. The chitosan particles are preferably present in the dispersion in a particle size from 0.1 to 1500 μm, preferably 1 to 800 μm.

Method for treating cellulose moldings

PROBLEM TO BE SOLVED: To provide a method and an apparatus for treating and separating waste water for stably and efficiently realizing high-quality recovery and recycling of waste water. SOLUTION: In the method for treating and separating waste water and the apparatus for treating and separating waste water, at least a part of production waste water discharged from production equipment or/and combined waste water flowing through piping for waste water facilities prepared by combining a plurality of kinds of production waste water discharged from the production equipment is positively subjected to separation treatment into relatively high quality water and low quality water and the high quality water and the low quality water according to the separation treatment are separated into separate destinations. COPYRIGHT: (C)2006,JPO&NCIPI

Method and apparatus for treating and separating waste water

PROBLEM TO BE SOLVED: To manage the behavior of a managed person without requiring manager's labor. SOLUTION: This behavior managing device is provided with a position detecting part consisting of a GPS antenna 11 for detecting a user's own position, a GPS receiving part 12 and a position computing element 13, a timer part 18 for counting time, an IC card 16 for storing position information corresponding to time information, a CPU 14 for starting the counting of the timer part 18 based upon the time information stored correspondingly to the position information stored in the card 16 when the detected position information coincides with the position information stored in the card 16, and an informing part consisting of a voice conversion part 17 for announcing the coincidence of time by a voice when the time counted by the timer part 18 coincides with the time information stored in the card 16 and a speaker 20.

Behavior managing device

PROBLEM TO BE SOLVED: To provide a method for decoloring colored industrial wastewater, and also for simultaneously purifying the industrial wastewater such as removing a phosphorus ion therefrom.SOLUTION: The colored industrial wastewater is decolored while the phosphorus ion is removed therefrom by adding a calcium compound and/or a magnesium compound to the industrial wastewater and immersing therein a purification means comprising an iron material and a carbon material, both of which are at least partly in contact with one another to promote the elution of an iron ion by enhancing the electric conductivity of the wastewater due to the presence of the calcium ion and/or the magnesium ion.

Method for decoloring and purifying water

PROBLEM TO BE SOLVED: To provide a deodorant fiber fabric having not only excellent properties for deodorizing smell of sweat comprising acetic acid, ammonia and isovaleric acid as main stench, but also washing resistance, and also having excellent water absorptivity SOLUTION: The deodorant fiber fabric includes a fiber covered with a film of polymer composition which contains (a) chitosan having a weight average molecular weight of not less than 10,000, and (b) a flavonoid and/or hydrolyzable tannin, and the pH of the fabric is not less than 60 COPYRIGHT: (C)2010,JPO&INPIT

Deodorant fiber fabric and method for producing the same

PURPOSE:To discharge waste water to sewerage or a public water area by treating waste water low in BOD using an ultrafiltration membrane, a precise filter membrane or both of them and discharging filtrate set to a predetermined ratio or more in the amt. of waste water and subjecting conc. water set to the predetermined ratio or less in the amt. of waste water to biological treatment to discharge treated water. CONSTITUTION:Low conc. waste water 1 of which the biochemical oxygen command (BOD) is 5-40 mg/l is treated in a filter membrane device 12 using an ultrafiltration membrane, a precise filter membrane or both filter membranes, and the filtrate is set to 1/2 or more the amt. of waste water and conc. water 3 is set to 1/2 or less the amt. of waste water. The filtrate is discharged and the conc. water 3 is subjected to biological treatment by a biological treatment apparatus 15 to discharge biologically treated water. In this treatment of waste water, waste water 2 of which the concn. of BOD is higher than that of the low conc. waste water 1 and the conc. water 3 of the low conc. waste water 1 can be simultaneously treated. Since the high conc. waste water is high in BOD, it can be biologically treated as it is and can be directly mixed with the conc. water of the low conc. waste water 1 to be subjected to biological treatment.

Treatment of waste water

PURPOSE: To obtain the subject textile fabric safe to the human health by impregnating cellulose- or polyamide-based fibers with a tannic acid-contg aqueous solution followed by treatment with a chitosan-contg aqueous solution CONSTITUTION: A cotton fabric or nylon fabric is first scoured with a nonionic surfactant and then immersed in a hot aqueous solution of tannic acid Secondly, the resultant fabric is washed with water, dehydrated and then dried Subsequently, the resultant fabric is immersed in a mixed aqueous solution containing both chitosan and lactic acid followed by dehydration and then drying to obtain the objective antimicrobial textile fabrict

Production of washing-resistant antimicrobial textile fabric

PURPOSE:To efficiently decolor waste water from dying processes such as waste water of dying, waste water from alkali weight reduction process, waste water from refining process, and waste water from cleaning process containing reactive dyes or the like CONSTITUTION:The residual liquid of dying containing reactive dyes is oxidized with ozone and mixed with waste water from an alkali weight reduction process or waste water containing dyes except for the reactive dye or waste water from refining process Then the mixture is processed with microbe

Decoloring method for waste water of dying

PURPOSE:To make it possible to separate and remove reactive dye from an aqueous solution containing the reactive dye early and efficiently by adding alkaline earth metal salts to an aqueous solution with pH higher than a specified value which contains the reactive dye and separating a deposited substance. CONSTITUTION:Alkaline earth metal salts (e.g. calcium chloride) are added to an aqueous solution with pH higher than 9 which contains reactive dye to separate a deposited substance. The addition amount of the alkaline earth metal salts is preferably 10 to 60g/liter in terms of anhydride. This treatment method solves pending issues peculiar to a conventional technology such as deterioration of a removal rate of pollutant due to the insufficient quantity of an organic coagulation sedimentation agent, which is attributed to a variation of pollutant concentration in waste water, or an increase in BOD, COD due to the excessive removal rate, and some problems of the removal rate of pollutant due to the use of a strongly acidic inorganic coagulation sedimentation agent as well as the difficulty of controlling the pH value in such case. Further, it is possible to separate and remove reactive dye from an aqueous solution containing the reactive dye easily and efficiently, without using a substance which falls under the provision of the enforcement ordinance of the water quality contamination inhibitive law for human health and life environments as a treatment chemical.

Treatment of waste dye liquid

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Treatment of waste water

Production of washing-resistant antimicrobial textile fabric

Decoloring method for waste water of dying

Treatment of waste dye liquid