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WASTEWATER SOLUTIONS FROMORENCO SYSTEMS-, INC <br /> a't lu p, y' <br /> Ar?Aff�rd�f�l�Wstewaterl[haament Solratioti foi,Commercia�P },erties <br /> 4%�S� i 4r i� tirt <br /> 1 it <br /> ili�rtt 'it�Ill�i�i1 rrl� <br /> _ <br /> n r , <br /> b'ra�asr�§ =,i`I Wapsie Valley High School had surfacing wastewater flowing <br /> over the school's parking lot from a 45-year-old drainTeld.Highly variable flows WAPSIE VALLEY HS, <br /> and site constraints posed additional problems. FAIRBANK, IOWA <br /> r <br /> a I Spl4y(t " We psi e Valley High School Installed a compact AdvanTex® <br /> AX100 Wastewater Treatment System,which is capable of handling variable <br /> flows,and a TCOMW remote telemetry monitoring system,both manufactured <br /> by Orenco Systems,Inc. <br /> In 2004,Wapsie Valley High School desperately needed a wastewater <br /> solution.Partially treated,odorous wastewater was surfacing from the School Faeihty <br /> school's 45 year old drain£etd and flowing over the schools'parking lot. •High school serving 350 students/staff,gym, <br /> School officials hired MMS Consultants to evaluate options for a new cafeteria,and community center <br /> system. Installation Date <br /> •October 2005 <br /> MMS had to design a system that could deal with the school's highly primary Treatment <br /> variable wastewater flows.In addition to serving 350 students and s aff, Two 20,000 gallon septic tanks <br /> the rural school also hosted community activities,including athletics, Secondary Treatment <br /> music programs,drama,and conferences.During the school year, . 10,000 gallon recirculation tank <br /> wastewater flows averaged 5,000 gpd,and big events strained the FourAX100s <br /> d But during the summer,flows •Two duplex 50 gal/min,3/a Hp pump <br /> system's capacity to a peak of 13,000 gp g packages <br /> dwindled to almost nothing.Most wastewater treatment technologies .TCOMI telemetry control panel <br /> perform poorly when flows vary this much. Dispersal <br /> •Existing subsurface drainfield <br /> Another challenge for the treatment system was Iowa's winter Operation <br /> temperatures,which typically approach 0°P. •Part-time operater with quarterly <br /> In addition to these challenges,MMS had to cope with construction maintenance visits. <br /> constraints.Space on campus was limited,and school officials insisted Effluent Quality <br /> • <10 mg1L BOD5 <br /> on preserving existing athletic space and other areas throughout the <10 mglL TSS <br /> school grounds,Only a small section of land,located within 20 feet of <5 mglL NH3-N <br /> classrooms,was available.Moreover,constriction had to be completed <br /> within a 10-week window during the 2005 summer break. <br /> After evaluating the situation,MMS Consultants chose an AdvanTex <br /> Treatment System,manufactured by Orenco Systems,for its relatively <br /> (j simpte,robust,and part-time operation,low energy consumption, <br /> and ease of construction.Advadl'ex is a textile packed-bed filter that <br /> operates in the recirculating mode and is unaffected by variable flows. <br /> l <br /> NCS-3 <br /> t ©20090.-c SYMf 0Ire. Rev.1.0,© <br /> Page I d of 2 2 <br /> C <br /> 1 <br /> I <br /> t <br />