The Esmil Group offers a range of additional equipment for primary and secondary clarifiers, which helps improve the efficiency of wastewater treatment. Esmil clarifiers equipment can be supplied as a set of the listed components for new facilities, as well as for the modernization of already commissioned equipment. The latter option not only enhances the reliability of the equipment, improves treatment performance, and reduces the number of maintenance staff but also reduces capital costs that are inevitable with a full equipment replacement.
Additional equipment for primary and secondary clarifiers by Esmil
All-wheel-drive trolley
Ensures high reliability and stability of clarifier operation throughout the year. The use of all-wheel-drive trolleys improves traction, facilitates equipment operation during the winter period, and helps prevent slippage.
Motor-wheel or electric drive wheel
An energy-efficient solution that stands out for its compactness, ease of maintenance, and high durability. It reduces operational costs (lower energy consumption due to the low power of the motor – only 0.37 kW, low oil consumption) and ensures the reliability of the equipment under harsh operating conditions (low and high temperatures, high humidity, dust, limited space, etc.).
Central drive
Ensures the movement of the clarifiers’s working part (scrapers) without slippage during the winter period. The use of a central drive allows the abandonment of the current collector and drive trolley, while reducing costs for cleaning the overflow channel edge. This equipment is easy to operate and requires minimal attention from the maintenance personnel. The use of a central drive design is the most rational solution in cases where the installation of enclosed, stationary covers over the clarifier is planned to reduce the spread of unpleasant odors from the open clarifier surface, as well as for steel reservoirs where the design of the clarifier walls does not allow the use of peripheral drive scrapers.
Clarified water launder with V-Notched Weirs
A solution for improving the quality of wastewater treatment and reducing operational costs. To create optimal settling conditions in the operation of the clarifier, it is essential to ensure uniform flow of radial water currents. V-Notched Weirs allow for an even distribution of hydraulic load across the entire length of the water collection trough, eliminating areas of intense water discharge that lead to an increased carryover of suspended solids from the clarifier. The launders are made of high-quality stainless steel AISI 304 and 316, which do not require waterproofing work or costly repairs, unlike concrete troughs. Stainless steel troughs are easy and quick to install, reducing clarifier installation costs. Additionally, the configuration of launder placement can be modified, for example, launders with dual overflows can be installed. The use of notched overflow launders significantly reduces operational costs for the company.
Semi-submerged circular shields for floating substance retention
They protect wastewater treatment facilities from grease, petroleum products, and floating debris. The manufacture of semi-submerged shields from corrosion-resistant stainless steel grades AISI 304 and 316 enhances their operational properties, while the simple design facilitates easy installation.
Central deflector
The design of the deflector made from polymer materials reduces the load on the bridge and significantly simplifies the installation of the clarifier. This equipment is characterized by high corrosion resistance and reliability, ensuring a long period of trouble-free operation. The deflector’s design ensures an even distribution and direction of flow, which in turn enhances the efficiency of suspended solids separation and improves the quality of wastewater treatment.
Screw scraper for collecting floating substances
An effective solution to improve the quality of wastewater treatment and collect floating substances, recommended for large volumes of industrial wastewater or when traditional systems for removing floating substances are inadequate. The screw scraper ensures complete and efficient removal of floating substances from the water surface of clarifiers, which significantly enhances water treatment quality.
Half-span and diametral bridge
The use of half-span and diametral bridges in the design of primary and secondary clarifiers enhances:
- the quality of sludge removal from the bottom of the clarifier by increasing the number of bottom scrapers;
- the quality of floating substance collection through the addition of a floating substance collection board along the entire length of the diametral bridge frame.
This solution is particularly effective for treating wastewater with a high concentration of floating substances and/or sludge.
Logarithmic scraper
A more efficient solution for improving sludge removal and reducing operational costs. Due to the design of the scraper (a single scraper extending from the edge of the clarifier to the central sump), it reduces the resuspension of sludge during movement compared to traditional scraping systems. The logarithmic scraper allows for the transportation of sludge from the furthest point of the clarifier to the sump in one rotation, which reduces the sludge transportation time and lowers electricity consumption.
Adjustable Deflector (for primary clarifiers)
A modern solution for improving the quality of wastewater treatment. The deflector design allows for smooth regulation of the flow velocity and direction to ensure optimal parameters for the sedimentation process. This type of deflector is particularly useful in cases of uneven wastewater flow and varying concentrations of pollutants, which often occur when combining domestic and stormwater sewage systems.
Bar Mixer (for primary clarifiers)
An effective solution for sludge compaction and homogenization, significantly reducing costs for its further transportation, stabilization, and dewatering. The use of a bar mixer improves the quality of sludge compaction and reduces its moisture content by draining interstitial water from the sludge layers.
