Pump new technology and application of the development trend

It is installed at CoronadelMar Waterworks (WTP) in California, USA. The Corona delMarWTP has a maximum wastewater treatment capacity of 36 million gallons per day (mgd). The PulsaHypo pump, supplied by Pulsafeeder, was installed in the water management area for the quantitative addition of sodium hypochlorite. Most of the 12 pumps are used to disinfect influent water, adding chemicals at 55 gallons per hour (gph). Other pumps dosed sodium hypochlorite quantitatively to the clean and boost stations, feeding 32 gph to the clean well, and sterilizing at 9 gph at the booster station. All pumps are under no more than 100 psi operating pressure and no reports of downtime or failure have been received since the first pump was successfully installed last year. After installing more pumps one after another. The first pump installed at WTP was an upgraded unit, a PulsaHypo pump that was retrofitted from a standard Pulsafeeder Pulsa pump. Mike Alvarado, the site's chief technician, realized he had some standard Pulsa pumps and decided to contact Pulsafeeder's local agent CharlesP.Crowley in the area to ask them about the use of a pump device to add quantitative sodium hypochlorite. Mike was told that it was highly possible to do the job, and he was pleased that he already had 85% of the pump's components, including the motor and transmission. All that is needed is a little engineering work to ensure that the pump lift meets the parameters required by the mission. A total of six Pulsar pumps were converted to PulsarHypo pumps, and in addition Mike ordered six more new pumps. Previously, Goleta Water District had used a peristaltic pump to do the task of adding sodium hypochlorite quantitatively, but the tubing components were not disabled and after several months of frequent tube changes MikeAlvarado decided to look for an alternative. He had hoped to use the diaphragm pump again, but to avoid the problem of "gas combination" because the problem usually arises when the demand is low, because at first they had to forgo the use of these diaphragm pumps for this problem and to use peristalsis Pump. Liquid chlorine (NaOCI) also known as sodium hypochlorite, or is called soda, it is easy to deteriorate in a piping system or a pump system, since it is the release of oxygen, resulting in the residue was crystallized. If oxygen or steam accumulates in the piping system and reagent head large enough, the compressed gas minimizes the bleed check valve, compromising the performance of the standard reciprocating metering pump, resulting in the need for a re-prime start Pump to work. Several "inflation" effects are exacerbated by several factors, including elevated temperatures, highly concentrated solutions, sunlight / UV, and many other factors. The PulsafeederHypo pump avoids this problem because it is designed to allow the compressed treatment fluid to periodically flush water vapor and liquid through the pump's discharge system. The manufacturer of the integrated head design together with the pump, so no expensive bypass system, such as pipes, valves and a number of fittings, and performing the standard dosing diaphragm metering pump when the sodium hypochlorite used in the task, typically Will use such a bypass system. The Pulsafeeder pump system empties the air generated in the pump system and pump head automatically, improving the self-priming performance of the unit. In addition, the sealed-loop PulsarHypo pump system is not open to the atmosphere at any point, thus ensuring that no soda is crystallized. MikeAlcarado and his colleagues no longer have to worry about going to the factory in the middle of the night to change pumps or handle inflation. The PulsaHypo pump is operating normally and it is expected that more pumps and other equipment will be installed in suitable locations within the Goleta Water District in the near future. Peristaltic Pumps for Dosing Corrosive Chemicals Watson-Marlow Bredel 520 Series peristaltic pumps. The two pumps supplied by the company have been installed at the Thames Water southeast wastewater treatment plant in Cranleigh, England, where they are responsible for the quantitative addition of ferric chloride. Thames Water's South Eastern wastewater treatment plant, located in Cranleigh, England, uses ferric chloride as a flocculant to meet Britain's stringent Biochemical Oxygen Demand (BOD) regulations and the forthcoming AMP4 standard Provisions. To handle this corrosive chemical safely, ThamesWater installed two peristaltic pumps at Cranleigh's site. Both devices must withstand chemical attack and aging and still provide accurate, repeatable performance. Ferric chloride has been used in the wastewater treatment industry for some time but has only recently been used as a flocculant to meet the specified BOD requirements. The aggressive chemical is corrosive and must be precisely dispensed if it is to achieve the desired result. ThamesWater chose two 520UN / R2 peristaltic pumps from Watson-MarlowBredel to do the job. The 520 Series incorporates a high-power brushless DC motor with a die-cast polyester-coated housing rated IP66 and the manufacturer claims that it is designed for reliability and safety. 520 pumps produce flow rates from 4ul / min to 3.5l / min, which allow ThamesWater to adjust flow rates with +/- 0.1% accuracy. The manufacturer claims that the pump can be calibrated by weight or volume to ensure accurate measurement. Feedback from the end user is reflected by the pump's own display and there is also a dual analog input to control and measure the speed of the work. After filtration and removal of small grit, ferric chloride was added to the sewage at the Cranleigh Wastewater Treatment Plant, where ferric chloride was about to enter the first sedimentation tank. Here, iron undergoes hydrolysis to generate positively charged iron hydroxide, which attracts negatively charged colloidal substances to form flocs that aggregate into large clusters. In this mechanism, ferric chloride not only reduces BOD at Cranleigh's site but also eliminates heavy metals, larvae eggs, pathogenic substances, suspended solids and jelly substances. After the process, the sewage continues to flow through the first sedimentation tank, and then into the second and third stages of treatment. Peter Packham, Processing Coordinator, ThamesWater Southeast Wastewater Division, said: "The primary factor we consider in selecting a supplier is its ability to handle this aggressive material (ferric chloride) and to be 100% reliable." Pumps supplied by WatsonMarlowBredel have been in operation for more than six months and to date, there have been no reported malfunctions. AFP, a new wastewater treatment plant in Spain and the Netherlands, was installed at LaReguerona Wastewater Treatment Plant (WWTP) in Gijón, northern Spain. ABS Pumps has supplied a wide range of pumps, mixers, submersible mixers and aeration systems to two WWTPs in Spain and the Netherlands. LaRegueronaWWTP is located in the western part of Gijón in the Asturias region of northern Spain. It is designed as a wastewater treatment plant with a peak flow of 6m3 / h for 330,000 inhabitants. It processes waste water from nearby Carreno and uses three VUP05010450 / 6-52 vertical submersible propeller pumps with a maximum lift of 12m and a flow rate of 7000l / s. Next to these pumps is a variant of the AFP submersible pump that pumps any fluid up to 90 m in lift and delivers 11,500 m3 / h. The new unit also features NOPOL® DDS diffusers and a variety of screens, presses and pumps from ABS, which briefly opens and connects to a new exhaust duct to the sea. The recently renovated LaFigar pumping station in Gijón will divert waste from one end of the city to the other. It is part of a larger program to improve urban wastewater facilities. It is also equipped with a pump and inflation system from ABS. During the construction of the new LaRegueronaWWTP, ABS's subsidiary AbBombas SA in Spain also had leased pump equipment to its client, the Asturias local government. The Netherlands has set up a new water purification plant on the outskirts of Lichtenvoorde. The plant is owned by Waterstromen BV, a subsidiary of a local water authority that processes waste water from the town's largest tannery, which processes 200,000 leathers annually and increases its output year-by-year. The new IndustriewaterLichtenvoordeC.V. water purification plant uses some of the equipment similar to the Spanish WWTP, including the ABS pump, mixer and mixer, which provide additional capacity to support the continued expansion of the tannery by Koninklijke Hulshof Verenigde Fabrieken BV management.