1. Biological elimination of ammonium contained at high concentration in waste water

   • H. Brauer
   • M. Hefni -Omar

   Originals Pages: 51 - 62

2. A new cultivation method of fungi or mycelia

   • I. Endo
   • T. Nagamune
   • T. Kobayashi

   Originals Pages: 63 - 68

3. Reactor design for the ABE fermentation using cells of Clostridium acetobutylicum immobilized by adsorption onto bonechar

   • N. Qureshi
   • I. S. Maddox

   Originals Pages: 69 - 72

4. Centrifugal film reactor — a new concept for cell cultivation

   • R. Long
   • R. Roubicek
   • S. Holbrook

   Originals Pages: 73 - 77

5. Kinetics of reextraction of Penicillin G from the organic phase after reactive extraction

   • Z. Likidis
   • K. Schügerl

   Originals Pages: 79 - 82

6. Enzymatic production of L-tryptophan in a reverse micelle reactor

   • D. K. Eggers
   • H. W. Blanch

   Originals Pages: 83 - 91

7. Energy saving effect of pervaporation using oleyl alcohol liquid membrane in butanol purification

   • M. Matsumura
   • H. Kataoka
   • K. Araki

   Originals Pages: 93 - 100

8. Product reports from Japan

   Report Pages: 101 - 101

9. Announcements

   Events Pages: 102 - 102