Deskripsi produk

Laboratory clarification system for the determination of biodegradability

For example, for coupled unit test in acc. with OECD 303 A, complete.

• behrotest® KLD 4 lab-scale wastewater treatment plant with denitrification stage:

The activated sludge is kept largely in the anaerobic range in this preliminary stage. This denitrifies the sludge and certain pollutants in the wastewater can be better degraded.

The operator can set the pump and pause times to return the sludge to the denitrification stage via a control panel. Times between 1 and 99 minutes can be selected. Naturally, all of the pumps in the lab-scale wastewater treatment plant are infinitely variable. This allows the flow rates to be adjusted to the relevant test conditions.

• behrotest® KLD 4/SR lab-scale wastewater treatment plant with denitrification stage and controlled oxygen aeration:

The behrotest® KLD 4/SR lab-scale wastewater treatment plant corresponds to the behrotest® KLD 4, but also has the same controlled oxygen aeration

- The behrotest® GWS 200 limit switch allows a free setting of the upper and lower limits in a range from 0 ... 200 %, corresponding to 0 ... 19.9 mg/l

- The air supply is switched on if the value drops below the lower limit and is switched off again if the upper limit is exceeded (hysteresis).

- The oxygen content in the aeration basin can be kept almost constant by a correspondingly small interval.

• behrotest® KLD 4 N lab-scale wastewater treatment plant with denitrification stage

The behrotest® KLD 4 N lab-scale wastewater treatment plant is identical to the behrotest® KLD 4, but also has the option of a continuous sludge return.

• behrotest® KLD 4 N/SR lab-scale wastewater treatment plant with denitrification stage and controlled oxygen aeration

The behrotest® KLD 4 N/SR lab-scale wastewater treatment plant corresponds to the behrotest® KLD 4 N, but also has the same controlled oxygen aeration as the behrotest® KLD/SR lab-scale wastewater treatment plant.

optional:

• Aeration and separator vessel of borosilicate glass 3.3,
• Air lift pump, also made of borosilicate glass 3.3, to return sewage sludge from the settling vessel to the aeration vessel,
• Diaphragm pump,
• Flow meters to introduce air into the aeration vessel and to control the air lift pump,
• Hose pump, 0.2 … 2 l/h to transport the wastewater,
• Storage tank, 30 l, for wastewater influent
• Collecting tank for effluent, 30 l .
• All parts are mounted on a space-saving, practical and sturdy trolley.