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1. 11mg g 32mg g b Langumuri 25 33 DRR ARE 17 25 pH2. 99 I 1 1 1000ppm NOQ N 2 Griess Romijm GR GR ec 8 80 12 9 A 3 Nitra Ver 5 HACH fL 2 1 Griess Romijm GR NO N GR ec
3. 1 10ppm 59 0 10 20 30 40 50 60 ppm NON E ppm 30 0ppm 0 1ppm 9 5 0 001 28 V NO N GR Nitra Ver 5 RH tb 1 15C GR iM 10 Nitra Ver 5 15 2 GR 0 1 10ppm NO N
4. U NO N 10mnl GR 0 03g 0 001 UV 150 W 520nm CHALK RIS 5 1 10 GR 0 03 g GR RERI OPFER 10 80min NO0 N 0 1 50ppm 15 295 2 GR NON prm Ye XR 2 A NON
5. NO N 20ppm 3 Nitra Ver 5 NO N 50ppm 0 1 10ppm 10 50ppm NO N NO N Miao Y K Horibe and M Hoki Utilization of Charcoal in Environmental j Protection Proceedings of the International Agric Eng Conference pp 406 412 Bangkok Thailand 2000 2 KR ifa ER AARETE DDR ARONA No 23 pp 31 36 1999 3 KR TR WD USERS BUDE LUA 59 pp 185 186 2000 4 p193 196 1993 5 HACH GR 2000 pp 2 2 91 2 2 94 6 7 1979 8 4 p 89 1994 296
6. As 0 054C 0 007 1 R 0 981 20ppm REDS 10ppm 110 4 NON GR 25ppm 2 Nitra Ver 5 1 0 10 20 30 40 50 10ppm NO N Nitra min Ver 5 1 DE 3 Nitra Ver 5 K C 3 Nitra Ver 5 T e C ER amp EL NO Ni I 10 50ppm 15 A 0 ae 5 0 132 15 0 144 Nitra Ver 5 NO N 5min NO N C ppm 15C
7. 2 NO N NO N 2 01 C 15C NO NIRBE 10ppm 20 40 60 80 Bit Rial min 1 GR 1 200 1 000 0 800 0 600 0 400 A 2 0 200 0 0005 26 15 30min GR NOs 0 1 10ppm A 0 54C 0 007 R 0 981 10 20 30 40 50 NO N C ppm 2 NO N 100 60 50ppm NO N GR 30min 20ppm GR 10ppm 0 1ppm 10ppm 0 012 0 558 0 1 10ppm AA NO N C ppm
8. 25ml 25nl V Nitra Ver 5 1 1 UV 150 W 500nm NO N 0 1ppm DR 2000 HACH LC 5 40min NO N 0 1 50ppm 15C E 1 GR 1 10ppm NO N GR 1 GR 10 80 GR
9. 4 NO N NO N 0 1 10ppm A70 01440 011 R 0 997 A C 7 2 NO N NO N 0 1 50ppm 4 3 Nitra Ver 5 1min 15min Nitra Ver 5 As C NO N C ppm 2 HL 3 0 1 10ppm NO N Aps 70 014C 0 011 2 R 0 997 10 50ppm NO N Aps 770 008C 0 066 3 RC 0 996 0 1 10ppm 23 NO N 5 NO N WERE ERT DIGI 2 3
10. Ver 5 Nitrate Reagent for the color reaction The changes in the absorbance of solution with time and the concentration of nitrate nitrogen were investigated In the color reaction with Griess Romijm Nitrate Reagent the absorbance of solution started decreasing in 10 min and it increased with the concentration of nitrate nitrogen in the range of 0 1 10 ppm An insoluble compound was produced in the solution when the concentration of nitrate nitrogen was above 20 ppm In the color reaction with Nitra Ver 5 Nitrate Reagent however the absorbance of solution became constant in 15 min and it had a linear relationship with the concentration of nitrate nitrogen in the range of 0 1 10 ppm as well as in 10 50 ppm No insoluble compound was produced in the solution with a concentration of nitrate nitrogen up to 50 ppm Key word activated carbon purification waste nutrient solution nitrate nitrogen spectrophotometric determination I B SASL BEE BALLS aA
11. e T SBAF Departmental Bulletin Paper 0 HHHHHHHHHHHHHHHHHHLH iLHHHHHHHHHHHHL Purification of Waste Nutrient Solution Using Activated Carbon A Study on the Quantitative Analysi sof Nitrate Nitrogen Contained in Solutions HH Oso Oso os Ose ee MIAO Yelian Hasei Hiroshi Mishima Takashi Hoki Makoto uggagagugauguuauuuull The bulletin of the Experimental Farm Faculty of Bioresources Mie University 2001 12 p 24 29 http hdl handle net 10076 3430 12 24 29 2001 MEREANA LR BRR RO HEME B i O RAHE m ONU ax Purification of Waste Nutrient Solution Using Activated Carbon A Study on the Quantitative Analysis of Nitrate Nitrogen Contained in Solutions Yelian MIAO Hiroshi HASEI Takashi MISHIMA Makoto HOKT Experimental Farm Faculty of Bioresources Mie University Graduate School of Bioresources Mie Univesity Department of System Control Faculty of Bioresources Mie University Abstract Spectrophotometric determination of nitrate nitrogen contained in solutions was studied using Griess Romijm Nitrate Reagent and Nitra
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