New technology and application of pumps from different countries

Goleta water district, a sodium hypochlorite feed pump installed in the California water treatment plant, is located in the south of Santa Barbara, California, USA It covers an area of 29000 acres and uses 230 mile long pipelines to supply water to about 75000 people The local water supply management area is also responsible for water purification in this area, and Zui has installed 12 gas treatment metering pumps in their main corona Del Mar water purification plant (WTP), which is responsible for quantitative addition of sodium hypochlorite to purify wastewater The pulsar hypo pump provided by pulsarfeeder is specially designed for the application of measuring sodium hypochlorite solution of different concentrations in wastewater It is able to solve some problems commonly encountered in this chlorination task, such as water vapor, heat and deterioration, so it is installed in the corona Del Mar water treatment plant (WTP) in California, USA The Zui wastewater treatment capacity of corona Del Mar WTP is 36 million gallons / day (MGD) The water supply management area is equipped with the Pulsa hypo pump provided by pulsafeeder company for quantitative addition of sodium hypochlorite Most of the 12 pumps are used to disinfect the incoming water, adding chemicals at a rate of 55 gallons per hour (GPH) For other pumps, sodium hypochlorite is added to the clean well and booster station in a fixed amount, and the feeding rate to the clean well is 32 GPH, while that to the booster station is 9 GPH The operating pressure of all pumps is no more than 100 psi, and no shutdown or failure has been reported since * pumps were successfully installed last year After that, more pumps were installed The * pump installed in WTP is an upgraded device, which is a Pulsa hypo pump transformed from a standard pulsafeeder Pulsa pump Mike Alvarado, the chief technician at the site, realized that he had some standard Pulsa pumps, so he decided to consult Charles P Crowley, the local agent of pulsafeeder in the area, about using the pump equipment to complete the dosing of sodium hypochlorite Mike was told that it was highly possible to accomplish the task and was pleased that he had 85% of the pump's components, including the motor and drive All that is needed is a little engineering modification to ensure that the pump head meets the parameters required by the task A total of six pulsar pumps were converted into pulsar hypo pumps, and Mike ordered six new pumps Previously, Goleta water district used peristaltic tube pump to add sodium hypochlorite quantitatively, but the tube element was not disabled After several months of frequent tube replacement, Mike Alvarado decided to find an alternative He had hoped to use the diaphragm pump again, but to avoid the problem of "gas binding", because the problem usually occurs when the demand is low, they had to give up using these diaphragm pumps at first because of this problem, and use peristaltic pump Liquid chlorine (NaOCl), also known as sodium hypochlorite, or baking soda, is prone to deterioration in the pipeline system or pump system because it releases oxygen, resulting in the crystallization of residues If oxygen or water vapor accumulates enough in the piping system and reagent head, the compressed gas will reduce the discharge check valve to Zui, thus damaging the performance of the standard reciprocating metering pump, resulting in the need to refill and start the pump There are several factors that contribute to this "inflating" effect, including increased temperature, highly concentrated solutions, sunlight / UV, and many others The pulsafeeder hypo pump avoids this problem because it is designed to allow the compressed treated liquid to periodically flush water vapor and liquid through the pump's discharge system The manufacturer integrates this design with the head of the pump, so there is no need for expensive bypass systems, such as pipes, valves and some accessories, which are usually used in the standard diaphragm metering pumps used for the quantitative addition of sodium hypochlorite The pulsafeeder pump system automatically empties the air generated in the pump system and pump head, improving the self starting oil filling performance of the equipment In addition, the seal loop pulsar hypo pump system is not open to the atmosphere at any point, thus ensuring that there is no sodium carbonate crystallization Mike alcarado and his colleagues no longer have to worry about running to the factory in the middle of the night to replace the pump or handle the inflation The Pulsa hypo pump is operating normally and it is expected that more pumps and other equipment will be installed at suitable locations in Goleta water district in the near future Wriggle pump for quantitative feeding of corrosive chemicals Watson Marlow Bredel 520 series wriggle pump Two pumps provided by the company have been installed at the Thames Water south-east province wastewater treatment plant in Cranleigh, UK, which is responsible for the quantitative addition of ferric chloride Thames Water's southeast province wastewater treatment plant, located in Cranleigh, UK, uses ferric chloride as a flocculant to meet the UK's stringent biochemical oxygen demand (BOD) requirements, as well as the upcoming AMP4 standard To safely handle this corrosive chemical, Thames Water installed two peristaltic pumps at Cranleigh's work site These two devices must be subject to chemical attack and aging, and still provide accurate and repeatable performance The application of ferric chloride in wastewater treatment industry has been for some time, but it was not used as flocculant until Zui was near, so as to meet the requirements of BOD The corrosive chemical is corrosive If it wants to achieve the expected effect, its dosage must be distributed Thames Water selected two 520 UN / r2 peristaltic pumps provided by Watson Marlow Bredel to perform the task The 520 series pump integrates a high-power BLDCM with a die-casting polyester coated housing, which is rated IP66, and the manufacturer claims that its design has good reliability and safety sealing 520 pumps can produce a flow rate of 4ul / min to 3.5l/min, which enables Thames Water to adjust the flow rate with an accuracy of + / - 0.1% The manufacturer claims that the pump can be calibrated by weight or volume to ensure accurate measurement Through the display of the pump itself to reflect the feedback of the end user, and there is a dual analog input to control and measure the working speed After filtration and removal of small gravel, ferric chloride is added to the sewage in a fixed amount in the Cranleigh wastewater treatment plant At this time, ferric chloride is about to enter * sedimentation tanks Here, iron is hydrolyzed to produce positively charged iron hydroxide, which attracts negatively charged colloidal substances, thus forming floccules, which gather into a large group to settle down In this mechanism, ferric chloride not only reduces the BOD of Cranleigh work site, but also eliminates heavy metals, larval eggs, pathogenic substances, suspended solids and colloidal substances After this process, the sewage continues to flow through * sedimentation tanks, and then enters the second and third stage of treatment in turn Peter Packham, treatment coordinator of Thames Water's wastewater treatment division in the southeast Province, said: "when selecting suppliers, the first factor we consider is their ability to treat this aggressive substance (ferric chloride) and to ensure 100% reliability." Watson Marlow Bredel's pumps have been in service for more than six months, and so far, no failure has been reported The new wastewater treatment plants in Spain and the Netherlands, the AFP submersible pump set of ABS, are installed in the La reguerona wastewater treatment plant (WWTP) in Gij ó n, northern Spain ABS pumps has supplied a wide range of pumps, agitators, submersible mixers and charging systems to two wastewater treatment plants (WWTP) in Spain and the Netherlands La regurona WWTP is located in the western part of Gij ó n city in the Asturias region of northern Spain It is designed as a wastewater treatment plant with a peak flow of 6m3 / h, serving a population of 330000 It will treat the waste water from the nearby Carreno area, and use three vertical Submersible Propeller pumps (VuP 0501 0450 / 6-52) with Zui large lift of 12m and flow rate of 7000l / s Next to these pumps is a variant of the AFP submersible pump, which pumps any fluid with a head of up to 90m and a flow rate of 11500m3 / h NOPOL? DDS diffusers and a variety of other screens, presses and ABS supplied pumps were also installed in the new unit, which opened briefly and connected to a new discharge line to the sea Zui, the La figar pumping station in Gij ó n, has been recently renovated, which will transfer waste from one end of the city to the other It's part of a huge plan to improve municipal wastewater facilities It also has pumps and inflation systems from ABS During the construction of the new La reguerona WWTP, ABS Bombas S.A., a Spanish subsidiary of ABS, also provided its customers, the Asturias local government, with leased pump equipment The Netherlands has built a new water treatment plant on the outskirts of lichtenvoorde The plant is owned by waterstromen BV, a subsidiary of the local water conservancy management agency, which processes 200000 pieces of leather per year and its output increases year by year The new industriewater lichtenvoorde C.V water treatment plant uses some similar equipment as WWTP in Spain, including ABS pumps, mixers and agitators, which provides additional capacity to support the continuous expansion of the tannery, which is managed by Koninklijke hulshof verenigde fabrieken bv.