behr KLD 4, KLD 4/SR, KLD 4 N, KLD 4 N/SR

Determination of biological degradeability - Laboratory purification plant with dentrification stage (Laboratory treatment plants with denitrification)
Areas of use

Environmental analysisR&D laboratories

Parameter to be analyzed

Biodegradability

Sample material

Cleaning and washing agentsSoapsCreamsMedicinal products

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.

Determination of biological degradeability - Laboratory purification plant with dentrification stage (Laboratory treatment plants with denitrification) - KLD 4 [B00218274] Determination of biological degradeability - Laboratory purification plant with dentrification stage (Laboratory treatment plants with denitrification) - KLD 4/SR [B00218277] Determination of biological degradeability - Laboratory purification plant with dentrification stage (Laboratory treatment plants with denitrification) - KLD 4 N [B00218278] Determination of biological degradeability - Laboratory purification plant with dentrification stage (Laboratory treatment plants with denitrification) - KLD 4 N/SR [B00218279]
KLD 4 KLD 4/SR KLD 4 N KLD 4 N/SR
Item number B00218274 B00218277 B00218278 B00218279
Packaging quantity 1
Width (in cm) 120.00 140.00 120.00 140.00
Depth (in cm) 60.00
Height (in cm) 185.00
Weight (in kg) 56.00 40.00 58.00 67.00

behrotest® lab-scale wastewater treatment plants to user specifications

behrotest® lab-scale wastewater treatment plants are also used outside standardised routine wastewater analysis applications.

• Preliminary neutralisation stage

If fitted with an upstream neutralisation vessel, the pH value of the crude wastewater can be corrected if necessary.

• Temperature control

In versions with double-walled vessels the user can specifically investigate the temperature and its effect on biodegradability, for example.

• Individual vessel sizes

The user can also order their behrotest® lab-scale wastewater treatment plant with vessel sizes according to their own specifications on request.

• Automation with a process control system software

behrotest® lab-scale wastewater treatment plants can be fully automated on a PC with a process control system software. The soft PLC performs the control, regulation and interlock functions such as pump start, pH-value control, controlled oxygen input, interval-based sewage sludge return. The setpoints for the return pumps are calculated from the feed flow rates determined by the pump characteristics and the desired reflux ratio.

All of the process data such as pH value, temperature and oxygen concentration are recorded and saved in a measured data archive so that they are available for later graphic and statistical analysis or for export to Excel.

The plant can also be extended to include additional measurement technology such as redox potential at the customer's request.

  • Environmental analysis
  • R&D laboratories
Content Filesize last updated
(PDF) Download Prospekt Laborklaeranlagen 720.5 KB 24.11.2017

Article

Art.-No.
KLD 4 Laboratory purification plant, complete, with dentrification stage
B00218274
KLD 4/SR Laboratory purification plant, complete, with dentrification stage and controlled oxygen aeration
B00218277
KLD 4 N Laboratory clarification system, complete, with dentrification level, with continuous sludge recovery
B00218278
KLD 4 N/SR Laboratory clarification system, complete, with dentrification level and oxygen input regulation, with continuous sludge recovery
B00218279