Title:
METHOD OF ANALYZING LIQUID MIXTURE IN WASTE WATER TREATMENT
Document Type and Number:
WIPO Patent Application WO/2007/148368
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a technique of analyzing the oxygen consumption amounts
and the oxygen consumption speeds in the microbial degradation process of waste
water components. [MEANS FOR SOLVING PROBLEMS] First, the oxygen consumption
speed kX=KLa.(DOhf-highDOX) in the final block
(blockX) containing a single BOD component alone is determined by
using an approximation formula to the dissolved oxygen level change curve and
the formulae ΔtX=tX-tX-1 and BODX=kX
.ΔtX.
Next, kX-1 in the second final block (blockX-1) containing
two BOD components is determined in accordance with the formula kX-1=
KLa.(DOhf-highDOX-1)-kX=KLa.(highDO-highDOX-1).
By successively repeating these calculations till the first block, the oxygen
consumption speed ki of each BOD component is determined by using the
relationship ki= KLa.(highDOi+1-highDOi).
At the same time, the BOD concentration of each BOD component pBODi
is determined as pBODi=ki
.tX
.
Inventors:
OGAWA TAKAO (JP)
Application Number:
PCT/JP2006/312112
Publication Date:
December 27, 2007
Filing Date:
June 16, 2006
Export Citation:
Assignee:
OGAWA ENVIRONMENTAL RES INST I (JP)
OGAWA TAKAO (JP)
OGAWA TAKAO (JP)
International Classes:
G01N33/18
Domestic Patent References:
| WO2006030538A1 | 2006-03-23 |
Foreign References:
| JPH1029882A | 1998-02-03 | |||
| JP2002333440A | 2002-11-22 | |||
| JP2006116480A | 2006-05-11 |
Attorney, Agent or Firm:
SUGIHARA, Tetsuo (1-2 Nibancho, Chiyoda-ku, Tokyo 84, JP)
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