Sulphite:
The Determination of sulfite usually is made only on boiler waters.Generally speaking sulfite is not present in natural water. in boiler feed water sodium sulphite is fed to remove dissolved oxygen.
Reagents
1. 1N Hydrochloric acid 1+1
2. Starch indicator solution
3. Standard potassium iodide-iodate solution.
Procedure:
Place 10ml of 1+1 HCL in a 250 ml flask. rapidly [....]
For a completely biodegradable wastewater such as glucose, approximately ten percent of the original organics remain as non-biodegradable cellular residues after biological oxidation. Hence, the cellular residues are not measured by the BOD test. Therefore:
BODu = 0.9ThOD —1
where BODu = ultimate BOD
ThOD = theoretical oxygen demand For domestic sewage and some biodegradable industrial wastes, the relationship [....]
| a AOBr AOCl AOI AOX b B0 B5 BOD BOD5 BODS BODSEED c CBOD COD CL CMWD D0 D5 DBP DO DOC DOX ECD ECNI EOX EPA f f ’ FAAS FIA FI–CL GC HAA HAA5 HAA9 HBOD HTC HX IC ICP–AES LOD MS MW NDIR NOM NDOC NPOC NPOX NVOC OMWD P POC POX R RSD TAME TC THM |
Sources of Industrial Stromwater.
Any solid or liquid material or chemical stored, leaked or spilled on the ground from an industrial
operation can be transported by stormwater to a recovery stream and become a pollutant. These
sources can be from any or all of the following:
• Outside process areas
• Inside process areas which discharge to the outside
• [....]
Water Analysis Procedure of Various Species | Elements
Toxicity
Things that can cause toxicity include many of the following:
Metals: lead, antimony, copper, zinc, chromium, cadmium, nickel, manganese
(permanganate), sliver,
Oxidizers: chlorine, chloramines, any of the group VII compounds in the
periodic table, permanganates, ozone, fluorine, iodine, peroxides, and
so on.
All of these compounds are direct toxins, because they directly interfere
with the biological [....]