Sodium nitrate total oxygen

The pilot plant was started daily during the 113 days of the experimentation. Samples were taken from the permeate stream, from the bioreactor, and from the water reaching the bioreactor after the physical-chemical treatment. A series of daily, weekly, and monthly analyses were carried out on these samples. The daUy analyses included pH, conductivity, temperature, dissolved oxygen in the reactor, COD, and permeate turbidity. The weekly analyses included BOD5, suspended sohds, volatile sohds, ashes, ammonium, nitrates, nitrites, total nitrogen, and total ortho phosphoms. The monthly analyses included sulfides, total chromium, and salts, all referred to as sodium chloride. 

Which of the following parameters have to be measured in the fresh sediment, which as soon as possible in squeezed or centrifuged pore water, which after preservation within some weeks, and which without any preservation even after long time alkalinity, ammonia, chloride, manganese, nitrate, oxygen, pH-value, potassium, sodium, sulfate, sulfide, total iron ... 

Although there are 30 water quality parameters available, only 23 completely monitored parameters were selected. A total of 254 samples were used for the analysis. The 23 water quality parameters were dissolved oxygen (DO), biological oxygen demand (BOD), electrical conductivity (EC), chemical oxygen demand (COD), ammoniacal nitrogen (AN), pH, suspended solids (SS), temperature (T), salinity (Sal), turbidity (Tur), dissolved solid (DS), total solid (TS), nitrate (NO ), chlorine (Cl), phosphate (PO ), zinc (Zn), calcium (Ca), iron (Fe), potassium (K), magnesium (Mg), sodium (Na), E.coli and coUform. 

The total chlorine content of the diisocyanate can be determined by the standard analytical technique of decomposing the sample in an oxygen bomb and determining the ionic chloride formed by potentiometric titration with silver nitrate solution. Effectively, diisocyanate, as well as other organic materials, is oxidized by combustion in a bomb containing oxygen under pressure. The resultant chloride ion is absorbed in a 1% sodium carbonate solution and the concentration of chloride present is determined potentiometrically. 

Mittenberger and Gross " determined chlorine in PVC by fusion with sodium peroxide followed by silver nitrate titration of the chloride produced. Tanaka and Morikawa described a semimicro technique for the determination of total chlorine in PVC using a semimicro method based on the Schoniger oxygen flask and Fajans method. 

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