PIPING MAINTENANCE
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Maintenance of the pipeline system in the wastewater treatment plant is an important item to ensure the entire system operates stably, avoid leaks, clogged pipes, reduce the risk of widespread problems and optimize treatment efficiency. Periodic maintenance helps prolong the life of the system, limit major repair costs and ensure the quality of output water according to environmental standards.
1. The objective of pipeline maintenance work
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Ensure the wastewater flow is transmitted smoothly.
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Minimize blockage, sedimentation, and sludge in the pipe.
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Control the pressure in the pipe, avoid breakage, rupture, and leakage.
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Early detection of corrosion points, open joints, and aging gaskets.
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Prevent the penetration of foreign objects, grease, and fibers that cause blockage.
2. Scope of system requiring maintenance
Including:
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Inlet collection pipe.
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Water pipes to tanks: garbage separation, conditioning, settling, biological.
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Sludge return pipe, air pipe from blower.
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Pressure pipe, PVC-U, HDPE, Stainless steel 304/316.
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Valve system: gate valve, butterfly valve, one-way valve, ball valve, regulating valve.
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Joints, flanges, gaskets, accessories.
3. Detailed maintenance work
3.1 Periodic visual inspection (weekly – monthly)
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Check for leaks at joints, flanges and flexible joints.
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Check for vibrations in the pipe when the pump is running.
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Mark any areas that show signs of corrosion, yellowing or decay.
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Check for thermal expansion and contraction in HDPE or PVC pipes during continuous operation.
3.2 Cleaning and flushing pipes
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Use a high-pressure pump or a cleaning ball to clean large pipes.
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Clear small pipes with a rotating device or specialized chemicals.
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Periodically discharge sediment at the bottom discharge valve installation points and technical manholes.
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Pump out settled sludge in low pipes or pipes leading to the settling tank.
3.3 Check valves and associated equipment
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Open and close the valve to check the tightness and smoothness.
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Tighten the flange bolts, replace the rubber gaskets that are worn or deformed.
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Lubricate the mechanical valves, check the locking pins and cranks.
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Clean the filter screen at the pump suction pipe.
3.4 Check the air pipe system - aeration pipe
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Measure the air pressure at the main pipe.
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Clean the air distribution disc, replace the clogged disc.
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Check the air pipe tightness, avoid oxygen loss which reduces the efficiency of biological treatment.
3.5 Measurement and data recording
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Record flow before and after maintenance.
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Evaluate pressure changes and head differences.
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Prepare technical records for each pipeline and treated location.
5. Recommended maintenance schedule
4. Warning signs that require immediate maintenance
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Significant decrease in pump flow not caused by the pump.
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Abnormal water rise in tank/tank due to blockage.
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Strange noise in the pipe when the pump is running.
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Unpleasant smell around the outlet pipe.
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Water leak at the joint or pipe burst due to pressure.
6. Benefits of proper maintenance
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Reduces the risk of station shutdown due to pipeline blockage by 30–50%.
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Optimizes operating costs thanks to stable flow.
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Prevents large-scale incidents causing tank flooding and dirty water overflow.
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Extends the life of pumps and related mechanical equipment.
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Ensures the system meets environmental and occupational safety requirements.
7. Proposal for wastewater treatment plant pipeline maintenance service package (for businesses)
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Reduces the risk of station shutdown due to pipeline blockage by 30–50%.
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Optimizes operating costs thanks to stable flow.
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Prevents large-scale incidents causing tank flooding and dirty water overflow.
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Extends the life of pumps and related mechanical equipment.
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Ensures the system meets environmental and occupational safety requirements.
CÔNG TY TNHH CAMIX
34 - 36, Đường 57A, P.Tân Tạo, Q.Bình Tân, Tp.HCM
Tel: (028) 3601 5966 - Fax: (028) 5407 3938 - Email: info@camix.com.vn
Hotline: 0903.318.778 (Ms.Phuong Linh) - 0976.164.441 (Mr.Anh Khoa)
