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Tsurumi Pump effective screening is vital for wastewater
Effective screening at the start of wastewater treatment protects downstream equipment like Tsurumi pumps and valves from debris, preventing clogs, minimizing maintenance, and boosting overall plant efficiency.
www.tsurumipump.com
In wastewater treatment, screening is one of the most fundamental steps in protecting downstream processes. When debris such as plastic and rags pass through untreated, they can damage pumps, clog valves, and interfere with biological processes. Effective screening not only prevents these issues, but also improves treatment efficiency, reduces maintenance, and supports overall plant reliability.
The Role of Bar Screens in Treatment
At the headworks of a treatment plant, bar screens remove coarse material before wastewater enters subsequent stages. This step sets the foundation for the entire treatment process by protecting pumps, clarifiers, and biological systems from damage and operational disruptions that could be caused by clogging.
Different plants face different screening demands depending on conditions and debris types. In some applications, floating materials such as rags and wipes are most common, while in other applications, heavier solids or irregular debris are the main concern. Selecting the right type of screen, front type or rear type, is essential for smooth operation.
Tsurumi’s Approach to Screening Design
Tsurumi Pump designed a line of small to mid-size automatic bar screens, including the KE, KS, KW, and KM Series. The bar screens use all metal rakes rather than plastic components; this helps to extend service life and ensure reliability under continuous operation.
Traditional front type bar screens use a series of rakes positioned in front of the bars to remove smaller floating materials. On the other hand, rear type screens operate with hinged rake arms behind the bars, using a crane-like motion to lift out large or heavy debris. This “dry chain” configuration prevents the chain from contacting the liquid.
For facilities dealing with corrosive environments or aggressive wastewater byproducts such as hydrogen sulfide, 316 stainless steel offerings in lieu of 304 stainless steel construction extends the life in extreme service. Drive options also vary from belt and chain mechanisms to direct gearmotor drives. In areas prone to flooding, Tsurumi’s immersive gearmotor drives allow continuous operation during extreme conditions.
Maintenance and Longevity
Although bar screens are largely automated, periodic inspection and cleaning help maintain long-term performance. Routine washing of the bars prevents buildup, while the screen sump, bearings, and rakes should be checked every few years for wear. With proper maintenance, bar screens can achieve an average service life of ten years, with installations lasting multiple decades.
A Critical but Often Overlooked Step
Screening remains one of the most cost-effective ways to enhance plant for small domestic wastewater and industrial treatment plants. Though simple in concept, it has significant influence over maintenance frequency, equipment lifespan, and process efficiency.
www.tsurumipump.com
The Role of Bar Screens in Treatment
At the headworks of a treatment plant, bar screens remove coarse material before wastewater enters subsequent stages. This step sets the foundation for the entire treatment process by protecting pumps, clarifiers, and biological systems from damage and operational disruptions that could be caused by clogging.
Different plants face different screening demands depending on conditions and debris types. In some applications, floating materials such as rags and wipes are most common, while in other applications, heavier solids or irregular debris are the main concern. Selecting the right type of screen, front type or rear type, is essential for smooth operation.
Tsurumi’s Approach to Screening Design
Tsurumi Pump designed a line of small to mid-size automatic bar screens, including the KE, KS, KW, and KM Series. The bar screens use all metal rakes rather than plastic components; this helps to extend service life and ensure reliability under continuous operation.
Traditional front type bar screens use a series of rakes positioned in front of the bars to remove smaller floating materials. On the other hand, rear type screens operate with hinged rake arms behind the bars, using a crane-like motion to lift out large or heavy debris. This “dry chain” configuration prevents the chain from contacting the liquid.
For facilities dealing with corrosive environments or aggressive wastewater byproducts such as hydrogen sulfide, 316 stainless steel offerings in lieu of 304 stainless steel construction extends the life in extreme service. Drive options also vary from belt and chain mechanisms to direct gearmotor drives. In areas prone to flooding, Tsurumi’s immersive gearmotor drives allow continuous operation during extreme conditions.
Maintenance and Longevity
Although bar screens are largely automated, periodic inspection and cleaning help maintain long-term performance. Routine washing of the bars prevents buildup, while the screen sump, bearings, and rakes should be checked every few years for wear. With proper maintenance, bar screens can achieve an average service life of ten years, with installations lasting multiple decades.
A Critical but Often Overlooked Step
Screening remains one of the most cost-effective ways to enhance plant for small domestic wastewater and industrial treatment plants. Though simple in concept, it has significant influence over maintenance frequency, equipment lifespan, and process efficiency.
www.tsurumipump.com
