After five-day dark incubation period, the DO is again determined; the BOD5
is then calculated on the basis of the reduction of DO and the size of the sample.
Pb was measured using Atomic Absorption Spectrophotometry (AAS) (Type: Perkin-Elmer AA900), fecal coli was measured using the Most Probable Number (MPN) method, phenol was measured using a UV-Vis (Type: Hitachi-U900), BOD5
was measured using the modified Winkler method, and Mixed Liquor Suspended Solid (MLSS) was measured using a Gravimetric method (APHA, 1998).
a,b) Different superscript in the row of BOD5
and T-N effluent concentration indicates statistical differences among R1 to R4.
The study of shared values BOD5
, CODCr opportunity to evaluate gives content of organic material in the water.
measurements of water presenting inhibitory Cu2+.
The determination of BOD5
was carried out as prescribed in literature using the aired modification method (18).
Results of COD and BOD5
values tested foamers (3% foreign solutions) COD BOD5 BOD5
/COD Name of foamer [mg.
com)-- Why design the performance of an incubator for rapid, and thus energy-intensive, heating up and cooling down phases, when it is used mainly for storing BOD5
samples, drinks containers or cosmetics at constant temperatures over long periods?
Results show that ammonia, total phosphorus, BOD5
, phosphorus and organic matter in the sediment removals in the CW were higher and indicated that macrophytes had an important role in removing these variables.
Many wastewater treatment plants use BOD5
levels to gauge the amount of waste that is present in water and the more BOD5
, the more treatment wastewater requires.
Basically, existing mills would have to limit discharge of BOD5
Table 1: Influent and effluent concentrations to combine conventional pond and subsurface flow wetland from December 2006 to December 2007 parameter conventional pond BOD5
Influent concentration(mg [L.