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Volume 29 (1985)
- Issue 6 Pages 299-
- Issue 5 Pages 237-
- Issue 4 Pages 187-
- Issue 3 Pages 127-
- Issue 2 Pages 65-
- Issue 1 Pages 1-
Predecessor
Volume 29, Issue 6
Displaying 1-8 of 8 articles from this issue
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[in Japanese]1985 Volume 29 Issue 6 Pages 299-300
Published: November 10, 1985
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (242K) -
Hisashi YOKOYAMA1985 Volume 29 Issue 6 Pages 301-311
Published: November 10, 1985
Released on J-STAGE: March 11, 2010
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Toshio KAWARAYA1985 Volume 29 Issue 6 Pages 312-326
Published: November 10, 1985
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSLead kinetics was examined for 32 or 48 weeks after discontinuance of 32-week lead administration to rats. The animals received solid feed containing 1 and 5% of lead as lead acetate. Changes in lead concentration in organ tissues during the experiment period were analyzed by means of kinetic study. Lead was taken into the body relatively rapidly after the start of administration and its concentration reached a near-steady state with 32-week administration. Steady-state distribution ratios (1 in the blood) of the lead concentration in vivo were estimated to be 1.5 in the lung, 2 in the cerebrum, 4 in the liver, 13 in the spleen, 40 in the kidney, 400 in the teeth, 540 in the skull and 600 in the femur. Lead retention in the hard tissues was very high. The pattern of lead elimination after discontinuance of the administration varied among three groups of tissues. The elimination was slow in the hard tissues. Lead concentration was relatively high but elimination was quick in the kidney, spleen and liver. The concentration was low and the elimination was slow in the lung, brain and blood. Restroration to the levels of the control group was not observed in the 48-week observation period in any of the three groups.View full abstractDownload PDF (1532K) -
An investigation into the actual state of wastewater discharge and for a method reducing its organic loadingKazuhiro TAKAMIZAWA, Zensuke INOUE, Atsuhiro HONDA1985 Volume 29 Issue 6 Pages 327-332
Published: November 10, 1985
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThe main purpose of the recently used wastewater treatment method is to obtain the best water quality. On the other hand, considering the spread of sewage works in Japan, it is important to develop a method for treating high-strength wastewater to obtain an acceptable water quality for sewage works at a practically low cost. Hence, in this study, we selected a “Kamaboko” processing plant as a typical example. To obtain basic data for the design of a suitable wastewater treatment plant, organic loadings of the constituted unit processes and their reducing methods were respectively investigated. The following results were obtained. Except for the fresh fish refining step, loading from the cleansing of the processing facilities showed the highest. Also, if recovery yields of intermediate products by some methods except for water washing enhanced, loading decreased remarkably. Based on this result, we have proposed some methods for decreasing loading. They are the conversion of material used and the modification of water washing operation.View full abstractDownload PDF (603K) -
[in Japanese]1985 Volume 29 Issue 6 Pages 333-337
Published: November 10, 1985
Released on J-STAGE: March 11, 2010
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[in Japanese]1985 Volume 29 Issue 6 Pages 338-340
Published: November 10, 1985
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (402K) -
[in Japanese]1985 Volume 29 Issue 6 Pages 345-348
Published: November 10, 1985
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (452K) -
[in Japanese]1985 Volume 29 Issue 6 Pages 349
Published: November 10, 1985
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (133K)
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