J.S. (Hans) Vrouwenvelder

3 Questions 52 Answers 0 Followers

Questions related from J.S. (Hans) Vrouwenvelder

What is a suitable and robust method to completely remove residual chlorine from tap water?

Our laboratory studies require 100 L/h of drinking water to study biofilm development in flow cells. We need to remove residual chlorine (0.5 mg/L) from tap water to eliminate that bacterial...

20 October 2015 6,420 27 View

What is the lowest phosphate concentration that can be measured in water?

We have difficulties in measuring very low ortho-phosphate concentrations. Maybe you know of a method or a laboratory that can help. The questions we have are: 1) Is there a reproducible, accurate...

27 July 2015 3,121 20 View

How to obtain a constant feed water flow in a biofilm monitor system supplied with tap water?

The tap water pressure is about 3.5 bar and is varying up to maximal +/- 0.2 bar with time. The pressure variations seem to cause small unwanted variations in water flow in the monitors that are...

27 June 2015 4,319 19 View