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How NETZSCH Solve Pit Emptying in Textile Common Effluent Treatment Plant?
The designed flow rate to the CETP is 14,000 m3 / d and it has a utilization of 13,000 m3 /d with the ZLD system.
INITIAL SITUATION AND PAIN AREA
- The customer is using manpower to unload the pits. They need a minimum of 15 people, one tractor, and a minimum of 4 days to unload one pit. Due to the colloidal nature of sludge, it is difficult to get into the pit and a scaffold needs to be constructed temporarily.
- Spillage of Sludge during loading and unloading
- As per ISO Audit, manpower is not allowed for this unloading considering the corrosive nature of sludge.
Application
Process Area: Multiple Effect Evaporator & Agitated thin Film Dryer rejects
Pumped Medium
ETP Waste Water/ETP Sludge/Salt Sludge. The Density was 1350 -1500 (kg/dm3) with Particle Size <5, Solid Content 20%. Viscosity 25000 cps. Discharge Head with 60Mts of horizontal and Suction Head with 6Mts Negative.
Nature of Salt Sludge
Salt sludge is an escape media from the mother liquor during the MEE process.
Salt sludge is sticky and colloidal in nature and it releases water during the suction process of pumping.
Application
Service Area: Homogenization & Secondary Clarifier Bio Sludge
Pumped Medium
ETP Waste Water/ETP Sludge/Bio Sludge. The Density was 1350 -1700 (kg/dm3) with Particle Size <5, Solid Content 22%. Viscosity 25000 cps. Discharge Head with 60Mts of horizontal and 4Mts Vertical.
Nature of Bio Sludge
Bio sludge is from the homogenization tank and secondary clarifier and the sludge is fed into the centrifuge for solid separation.
NETZSCH SOLUTION
As a Solution, we proposed our Rotary Lobe Pump for handling this sludge and to increase client confidence proposed an RLP trial at the site.
- Due to the nature of sludge, the suction pipes get choked when we are running at 50Hz, hence we ran the pump between 25Hz to 50Hz.
- The pump consumes 22 Amps as a maximum current for transferring the salt sludge from the pit to the solar pam for a distance of 60. And for transferring the bio sludge it consumes only 15Amps.
- Our T1 XLB-2 Pump takes only 16 hours to empty one pit whereas it took 4 days without a pump.
- They used only 3 men during this process to take care of the suction side of the hose from choking and not to run the pump empty where they needed 15 people without a pump.
- Cost-saving: Total cost saving per year Approx. 9 - 10 Lacs.
- No spillage of sludge using a pump.
- No risk of using manpower to handle this corrosive media.
- Able to fulfill the requirement of ISO Audit.
- Ease of cleaning the pump and pipeline with water.
- Movement of the pump is easy with a trolley-mounted pump system and hence shall be used for various services at different locations of the plant.
- Pump Model: T1 XLB-2
- Flow Rate: 15m3/hr @261 rpm
- Pump Housing: Gg25
- Rotor: Trilobe-S65L (NBR)
- Rated Power: 30 kW
- The flow rate in proportion to the rotational speed
- High dosing precision
- Constant, low-pulsation conveyance
- smooth conveyance of shear-sensitive media
- Low life cycle costs and easy servicing (FSIP®)
- Pump design and accessories in accordance with national and international standards, as well as customized models
Want to learn more about how the NETZSCH pump ranges, We can help you with your Industry application?
Get in touch with our team of experts. We can advise of best practices and recommend which pump will solve your tough challenge.
To send us an inquiry: https://shorturl.at/tvJKX
E-mail: info.nti@netzsch.com
Landline: 044 4296 5100
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