Velkommen til JUMOs verden af vand

Drikkevand

I Holland forbruges der i gennemsnit 123 liter vand pr. person pr. dag (2017). Dette vand bruges hovedsageligt til at tage bad, bruge toilettet og vaske tøj. I alt forbruges der 1,1 billioner (eller 1.100.000.000) liter om året i Holland (2007). Husholdningerne tegner sig for 0,8 billioner liter af dette, resten bruges af industrien, landbruget osv. Selvom der generelt er tilstrækkeligt med vand, forsøger regeringen at reducere vandforbruget for at beskytte miljøet.

For at opnå rent vand samarbejder forskellige fagområder. Ikke kun inden for drikkevand, men også inden for procesvand til industrien samarbejder flere parter. Her kan du læse, hvad der er involveret i fremstillingen af drikkevand, svømmebassinvand, rent vand, kølevand og spildevand. JUMO har i årtier været en pålidelig partner inden for vandbehandling.

Cleaning process pool water - disinfection

The main purpose of this treatment is to kill or reduce the number of micro-organisms living in the water (bacteria, viruses, etc.). This process is called disinfection or sterilisation. The addition of chlorine, or chlorination, is the most common way to disinfect water. In practice, it is common to first prepare a solution of water containing chlorine gas or hyprochlorite, and then add a suitable quantity of this solution to the water to be disinfected.

During the treatment of the water, the goal is to form as few undesired by-products as possible during disinfection. To a certain extent, this can be influenced by controlling the conditions (amount of chlorine, temperature, pH value) at the time of disinfection.

Control of Dutch swimming pool water

All swimming pools in the Netherlands are strictly monitored for water quality. The National Institute of Public Health and the Environment (RIVM) has laid down these rules in the Swimming Facilities Hygiene and Safety Act and Decree (Whvbz and Bhvbz).

Purewater

Consistently high product value

Pure water is highly purified water and a necessity in many different production processes.

For example, as a cleaning agent in the semiconductor industry or as a cleaning operation after the actual washing with detergents in the food industry and for cleaning and dilution purposes in the pharmaceutical industry.

pH measurement in pure water

In some applications, pH measurement in pure water is mandatory. However, the low conductivity and ionic strength of pure water cause technical problems in measuring the pH value. The solution is the refillable electrode from JUMO with KCl stock.

Conductivity measurement

Monitoring the quality of pure water using conductivity measurement is the most reliable method. A complete conductivity measurement chain consists of a pure water transmitter/controller, a conductivity sensor with integrated temperature sensor and a connecting cable. JUMO has digital technology for conductivity measurement.

With our pure water products, you have the option of precise cell constant indication, temperature compensation according to ASTMD 1125-95 and limit value monitoring according to USP (water conductivity <456>).

In a galvanising bath, objects made of base metals such as zinc or iron receive a protective finish. The coating may consist of chemical elements such as copper and nickel. The first wastewater treatment phase for this type of water is detoxification of cyanide and chromate. Detoxification takes place in a continuous flow system. Once this step has been taken, the next phase in the purification process takes place; neutralisation of precipitation, removal of precipitation products and removal of the sludge. The cleaned wastewater can now be discharged to the sewer.

pH measurement in electroplating installations

A pH value of at least 10 is required for cyanide detoxification. Chromate is removed from wastewater in the acidic range. Here pH measurement is used to monitor the electroplating baths and the detoxification process. JUMO has reliable equipment in its range for carrying out this precise task.