Improper management and disposal of oil and grease possess hazardous characteristics and have the potential to adversely affect the public health and environment.
In Malaysia, oil-water separator is an essential equipment used to treat industrial wastewater in order to comply with the Department of Environment’s regulations. It is designed to remove the thickness of oil, grease, and hydrocarbons, to ensure the wastewater is monitored and treated before it is discharged into an approved discharge point, such as a sewer. Oil-water separators are most commonly used in various industries entities such as marine and refinery wastewater treatment plants, food processing plants, tires production plants, fuel dispenser stations, public waste such as wet markets, food stalls, mechanics and car workshops, construction, etc.
Level and leakage detection is an important aspect that needs to be taken into consideration as a preventive measure.
Features like alarm triggers can alert the operator or maintenance team when there is a leakage or spillage of oil, grease, light petroleum products, and oil-coated solids from wastewater discharge from oil-water separators. Below are some level detection devices that can meet the demand and requirements:
GAD 531 and probe GP/10 are designed for monitoring oil-water separators. The probe GP/10 detects when the thickness of floating greases over water, is greater than the permitted maximum thickness.
GAD 531 displays the system status through 3 LEDs:
- Alarm occurred, not yet reset
- Normal monitoring status
- Alarming status
The alarm unit has an auto-diagnostic of system integrity. A relay output and an audible alarm inform the operator. The buzzer may be deactivated with a simple jumper if necessary. Caution: Not suitable for the detection of greases in emulsion, or greases cured in aggregate!
FEATURES
- Monitoring of grease-water separators
- Compact and economical model
- Detection of grease layer thickness overpassed
- Relay output; Changeover contact
- LEDs signals and audible alarm
RAC 531 is designed for the monitoring of hydrocarbon fluids separators. With sensor, OP/10 (OP/5) the alarm device detects when the maximum thickness is reached.
RAC 531 displays the system status through 3 LEDs:
- Alarm occurred, not yet reset
- Normal monitoring status
- Alarming status
The alarm device has a built-in buzzer. A jumper may disable its function; in this configuration, the lighting alarm and relay output inform the current alarm status to operator. The alarm device has an auto-diagnostic of measuring loop and of device integrity. An alarm signal occurs in case of dysfunction.
There are three marks on the sensor for an easy fitting according to highest hydrocarbon layer thickness.
FEATURES
- Survey of oil-water separator
- ATEX certified
- Compact and economical model
- Detection of highest hydrocarbon layer thickness
- Easy fitting, intuitive configuration
- Relay output; Changeover contact
- LEDs signals and audible alarm
NivOil is an alarm system designed for the monitoring of hydrocarbon fluids separators. The alarm device can be connected to 1, 2 or 3 sensors:
- NIVOIL-OP/10: Hydrocarbon layer thickness sensor to detect when the maximum thickness is reached
- NIVOIL-HPS/10: Overfill sensor to detect when the fluids are on the highest level
- NIVOIL-SP/10: Sludge layer sensor for alarming when maintenance is necessary
The 3 sensors may be connected to any input of NivOil. Any combination of the sensors can be wired. The instrument recognizes automatically the sensor type. A LED indicates the sensor type on the diagram on the front board. NivOil has a built-in buzzer; it is possible to disable its function.
All the components are ATEX certified. The sensors are for a location in zone 0 and the alarm device corresponds to a zone 2.
FEATURES
- Monitoring of hydrocarbon fluids separators
- Zone 0 ATEX certified (Zone 2 for the alarm device location)
- Solar powered or standard electric battery
- Energy saving mode adjustable (control frequency adjustable from 6 min up to 9 days)
- 3 inputs, for any NIVOIL probes
- Automatic recognition of type probe
- 3 relay outputs with audible alarm
