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4 1_INTRODUCTION âž” Laboratory analysis: see Chapter 2-8 Practical solutions—parameter by parameter The HACH LANGE product range covers the complete spectrum of parameters in water analysis.From wastewater, drinking water to process water. Whether in the lab or in the field. We have the right
solutions for you. O 2 , pH, conductivity Turbidity and sludge Sum parameters Nutrients Dissolved oxygen concentra-tion influences wastewater
purification more than anyother parameter. Its precisemeasurement is of major
technical and economic sig-
nificance. The pH and redox
values of wastewater and
drinking water are essential
for the assessment of manyother parameters and pro-cess steps. The conductivity
of water provides informationabout its salt content.In view of the importance of these parameters, HACHLANGE has developed anextensive range of products
using its outstanding advan-
ced technologies. Clear water is the desiredend product of wastewater
and drinking water treat-ment. Suspended solids andparticles can effect the end
product and may also inter-
fere with the process. The
determination of turbidity is
therefore an important task.
The central role of activesludge in the wastewater treatment process needs
careful monitoring: with para-meters such as the solidsconcentration, sludge volu-
me, sludge index and sludgelevel, HACH LANGE has acomprehensive range of pro-
ducts for determining the
lowest to the highest solidscontent as well as key sludgeproperties. COD, TOC, SAC, BOD andAOX provide no direct infor-
mation about individual sub-stances, but are sum para-meters which indicate, for
example, the chemical or
biological oxygen-consuming
capacity or UV absorption of water. HACH LANGE sum
parameters offer perfect solutions, easy handling,including proven, fast diges-
tions. For Toc analysis,HACH LANGE offers every-thing from individual analysis
in the laboratory to on-siteprocess analysis. Nitrogen and phosphoruscompounds are not toxic,
but encourage the growth ofalgae in surface waters,which results in oxygen
depletion. The elimination of
ammonium, nitrite, nitrate,
total nitrogen, orthophos-
phate and total phosphate
plays a key role in wastewatertreatment processes. In theanalysis of drinking water,
special attention is paid tonitrite and nitrate as potentialprecursors of carcinogens.
HACH LANGE nutrient analy-sis covers all parameters,and makes use of fast and
effective digestion methods. âž” Laboratory analysis: see page 16 âž” Laboratory automation: see page 83 âž” Laboratory analysis: see page 16 âž” Laboratory analysis: see page16 âž” Process measurement technology: seepage 95 âž” Laboratory automation: see page 83 âž” Process measurement technology: see page 95 âž” Laboratory analysis: see page 16 âž” Process measurement technology: see page 95 âž” Process measurement technology: see page 95 www.hach-lange.com
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