The Springfield, IL, Metro Sanitary District (SMSD) Sugar Creek Plant is going to be expanding over the next two years.\u00a0 They currently have no dewatering capability and they treat their liquid sludge with lime and liquid land-apply on their own fields onsite at the plant.\u00a0 In June of 2013, Schwing Bioset was invited to run a dual demo of their screw press and Bioset systems.\u00a0 The pilot study was conducted for two weeks where the Waste Activated Sludge (WAS) was dewatered with the screw presses and then converted to a Class A EQ product through the advanced alkaline stabilization Bioset process.\u00a0 Crawford, Murphy, and Tilly Engineers coordinated the pilot study for the District.<\/p>\n
Prior to the pilot study, the plant operations team was leaning toward using belt presses for their future dewatering needs.\u00a0 They had familiarity with belt presses and they were concerned that screw press technology did not have the capability to meet their requirements of 2660 dry pounds per hour without having to install a large number of screw press machines.\u00a0 They were basing their concerns on historical screw press throughput capability based on their market research.<\/p>\n
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(Configuraci\u00f3n del estudio piloto en la planta SMSD Sugar Creek)<\/em><\/span><\/p>\n During the pilot study, the Schwing Bioset team brought their FSP 600 screw press machine to dewater the partially aerobically digested WAS.\u00a0 The goal was to dewater the material to the highest percent solids, with an excellent capture rate, and also with the least amount of polymer consumption.\u00a0 The dewatered product would then be passed along to the mobile Bioset operation, which is an advanced alkaline stabilization process that can produce a Class A EQ Biosolid end product that can be utilized as a fertilizer or a soil amendment.<\/p>\n The first week of the demo was utilized to optimize the screw press performance, and the second week to monitor continued performance of the screw press while utilizing the Bioset operation to produce a Class A EQ product. The purpose of this was to monitor the product over a couple month period to determine the stability of the Class A EQ product at the Springfield plant.\u00a0 Over the two weeks, the FSP 600 screw press unit produced a dewatered product of 30% solids on average, even while operating the machine at 130-150% of design throughput capability.\u00a0 After polymer optimization, the end result was realized with 14 pounds of active polymer per ton and the capture rate was above 95% during the entire two week period.\u00a0 During the second week of the pilot, the Bioset system was utilized the entire time and was successful in producing the Class A EQ product.<\/p>\n Based on the successful results of the pilot, SMSD gave Crawford, Murphy, and Tilly the direction to design the new biosolids handling facility to include two high-performance screw presses, each capable of dewatering 1330 dry pounds per hour.\u00a0 Although they liked the simplicity of the Bioset Class A operation, they were uncertain if the need for Class A was justified for the new facility.\u00a0 They settled on a Class B Bioset system that utilizes all of the components of the Class A design, except for the reactor.\u00a0 Space was left in the building to install the reactor in the future should Class A become necessary.\u00a0 The job bid in December of 2014 and Schwing Bioset received an order for the two high-performance screw presses and the Class B alkalization system in early 2015.<\/p>\n Estas prensas de tornillo FSP 1102 muestran las capacidades de las prensas de tornillo de alto rendimiento y ofrecen a las plantas m\u00e1s grandes una alternativa atractiva a los filtros prensa de banda tradicionales o la deshidrataci\u00f3n centr\u00edfuga.<\/p>\n Para obtener m\u00e1s informaci\u00f3n sobre nuestras prensas de tornillo, el proceso Bioset y \/ o este proyecto espec\u00edficamente, comun\u00edquese con un Gerente de Ventas Regional de Schwing Bioset, llame al 715.247.3433, <\/strong>Env\u00edenos un correo electr\u00f3nico<\/strong><\/span><\/a><\/span>, y \/ o visite nuestro sitio web aqu\u00ed<\/span><\/a><\/span><\/span>.<\/strong><\/p>\n (Producto de clase A EQ con 44% de s\u00f3lidos)<\/em><\/span><\/p>\n <\/p>\nDescargue nuestros folletos e informes de aplicaciones<\/a>\n![\"Springfield_Demo_Image_2-1\"](\"http:\/\/cdn2.hubspot.net\/hubfs\/51084\/Springfield_Demo_Image_2-1.jpg\")
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