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    • 3. 发明专利
    • TREATMENT OF ORGANIC SANITARY SEWAGE
    • JPS6328496A
    • 1988-02-06
    • JP16803186
    • 1986-07-18
    • ONODA ALC KK
    • FUKAYA YUKIOHATANO KAZUYUKISAINOHIRA KAZUHIRO
    • C02F3/10C02F3/06C02F3/30C02F3/34
    • PURPOSE:To permit easy and efficient removal of org. matter, denitrification and dephosphorization with simple stages by providing an aerobic filter bed tank in which a porous contact material consisting of hydrated calcium silicate is packed and an anaerobic filter bed tank. CONSTITUTION:Org. sanitary sewage such as cattle dung, living waste water or sewage is introduced into the aerobic filter bed tank 3 in which the porous contact material contg. calcium silicate having 50-90% voids as the main constituting material is packed. The sewage is then treated by a biological membrane method and is thereby subjected to the removal of the org. matter, dephosphorization and nitrification. The treated water subjected to the nitrification is introduced into the anaerobic filter bed tank 5 and is subjected to the biological denitrification. The above-mentioned porous contact material is the molding obtd. by adding a foaming agent such as Al powder to a slurry contg. the siliceous raw material and calcareous raw material as essential raw materials and subjecting the slurry to a hydrothermal reaction treatment at and under a high temp. and high pressure or the crushed matter obtd. by crushing said molding. The removal of the org. matter, the denitrification and the dephosphorization are easily and efficiently executed by such simple stages.
    • 4. 发明专利
    • PRODUCTION OF ORGANIC FERTILIZER
    • JPH01286986A
    • 1989-11-17
    • JP11777688
    • 1988-05-13
    • ONODA ALC KK
    • HATANO KAZUYUKISAINOHIRA KAZUHIRO
    • C05F1/00C05F3/00C05F7/00C05F9/04
    • PURPOSE:To make it possible to obtain the title fertilizer of high quality in a short period, by mixing a hydrous organic substance with a prescribed cellular CaSiO3 hydrate, fermenting the resultant mixture, sieving the fermented mixture and grading the sieved mixture. CONSTITUTION:A cellular CaSiO3 hydrate having >=3mm particle diameter and >=50% voids and, as necessary, a flocculant are added to an organic substance (e.g. sewerage sludge) with >=70wt.% moisture content and mixed in a mixer 3 to provide a mixture with 50-75wt.% moisture content, which is then charged into a fermenter 4 having about 200l internal volume, turned, stirred once every about 7 days and fermented for about 1 month to afford a fermentation treatment mixture. The obtained mixture is subsequently sieved with a sieve 5 of size about 3mm and graded into an organic fertilizer with a low content of the cellular CaSiO3 hydrate and the residual cellular CaSiO3 hydrate. The residual cellular CaSiO3 hydrate, as necessary, is air-dried, returned to the fermenter 4 in the fermentation treatment step and repassed through the grading step to produce an organic fertilizer.