Laserfiche WebLink
<br />Quo, J.C. Y. Illd Url>cou, B. 1996. "Maximized <br />Detenlian Volumo Ilclcnnined by Runoff <br />Capcure RlIIio," J. Waur Rnotucn Plonning <br />and Manag_t. 1anIFob, p. 33-39, <br />Am<riam Society of Civil Enginccn, R_ <br />VA. <br />NeufeJcl, C.Y. 1996. "A.lnvutigaJion of <br />Dijf.,.., Mod/afor Flllratlon ofStormwater." <br />M.uten Theoi>, Deparlmenl of Civil <br /> <br />Engineering. Univcnity ofColondo lit <br />Denver, DeDver. Cokndo. <br />Urboou, B. R., Illd Ruzzo, W. 1986. <br />"SWldardization ofDetenlian Pond DeailPl <br />for Pbosphorua Removal," Urban lam. If <br />PolIMtion. NATO AS1 Series VoL 010. <br />Spring....Vcriag. Berlin. <br />Urboou, 8., R.oesner. L.A. and 000. C.Y., L.8. <br />19960. "Hydrology for Optimal Sizing of <br /> <br />Urban RunoffTreatmenl Control S}'Ilems," <br />Wow QuoUty 1._aUonal. 1nI<mali00l! <br />Auociatian for Wat<< Quality. London, <br />EDgIand. <br />Urboou, B.R., Do<<f..., J.T.ll1d Tuok.... 1.8. <br />199&. "Starmwat<< Sand FiI1nllion: A <br />Solution or. Problem?" APWA Reporter. <br />Am<rican Public Worb Association, <br />wubington, DC. <br /> <br />Table 1. Suggested Removal Rates by <br />Retention and Detention Upstream of a <br />Media Filter <br /> <br />Detention Snggested Percent <br />Volume,P.. Removal- Rv <br />Drain Time Detention Retention <br />T. in hours <br />48 60 90 <br />24 55 85 <br />12 50 80 <br />6 40 75 <br />3 30 70 <br />1 20 50 <br /> <br />Table 2. Field Measured Performance Ran~es of Sand Filters <br />Constituent In or Concentration mll/l Percent Removed <br /> Out Low Hi"h Mean Low Hi"h MCR. <br />TSS In 12 884 160 <br /> Out 4 40 16 8% 96% 80-94% <br />TP In 0.05 1.4 0.52 <br /> Out 0.035 0.14 0.11 5% 92% 50-75% <br />TN In 2.4 30 8.0 <br /> Out 1.6 8.2 3.8 (-130)% 84% 30-50% <br />TKN In 0.4 28 3.8 <br /> Out 0.2 2.9 1.1 0"10 90% 60-75% <br />TC. In 0.030 0.135 0.06 <br /> Out 0.016 0.035 0.025 0% 71% 20-40% <br />12. In 0.04 0.89 0.20 <br /> Out 0.008 0.059 0.033 50% 98% 80-90% <br /> <br />.MCR - Most Common Data Range <br /> <br />~ <br /> <br />4 <br /> <br />,., <br />T'"1.5 <br />< <br />.21.4 <br />~ 1.3 <br />~ <br />11l'.2 <br />< <br />"; 1.1 <br />~ ' <br />. <br />'u 0.9 <br />~ 08 <br />o <br />007 <br />0' <br />o <br /> <br />Maximized Storm Capture Volume l.- <br /> ,.... <br /> V f':O.85toO.97- <br /> -- <br /> y <br />...-1 Me,,,, Storm Capture Volume L <br />~I I I <br /> <br />10 15 ~ a ~ ~ ~ U W 55 <br />Drain time in Hours <br /> <br />Fig. 1 - Values of coefficient a in Equation 1. <br /> <br />24,00 <br />22,00 <br />20,00 <br />... 1800 <br />~ 1600 <br />.". 14.00 <br />~ 12.00 <br />" <br />~ 1000 <br />;:;: 6.00 <br />~ 6.00 <br />, <br />'.00 <br />2.00 <br />0,00 <br />0.00 <br /> <br />1200 <br />1100 <br />10,00 <br />9.00 <br />800 <br />7.00 <br />6.00 <br />5.00 <br />400 <br />'.00 <br />2.00 <br />o <br />o '.00 <br />fIl----+O,OO <br />1.201.40 <br /> <br />.~ <br />Zone I <br /> <br />Zone II <br />rMost Probable Range in Ffow <br />ThroushRateDecay <br />I.SuggesledDesign <br /> <br />, <br />\ 0, CnptrlclAnl"fnr Fnuatlnn s" <br /> <br /> <br />o , <br /> <br />"- <br />o <br /> <br />0.20 <br /> <br />~, <br />OAO <br /> <br />CumulatlveUnllTSSRemoved, L.(poundlsquarefoo!) <br /> <br />Fig. 3 - Flow through rate of sand filter as a <br />function of TSS removal. <br /> <br />Overflow - Concentration (Eft = kr tD E!) <br /> <br />Storm water <br />R u no ff <br />lnflow Cone. (E,) <br /> <br /> <br />Downstream <br />Emuen! Cone. ([;J) Composite <br />onc. <br /> <br />Case]. All runolTpasses through the detention or retention basin upstream of the tilter <br /> <br />Overflow - Concentration (Ell = krEI) <br /> <br />Stonnwater <br />Runoff <br />Inflow Cone. (E,) <br /> <br /> <br />Dowmlream <br />Composite <br />onc. <br /> <br />ease 2. All runoffexcecding detention volume bypasses the filter and the dClcntionlret entionbasin. <br /> <br />Fi~. 4 - Storm water RunolT Connection Arrangements for a Filter System. <br /> <br />- <br /> <br />14 <br /> <br />-,-- P - Wale' Quality Caplur~ Volume <br /> --= S=harg', Q orth~DcsisnCapturcVolume <br /> - (M.S-:) <br /> '0 <br /> _A, . Sandor <br /> OthcrFilterMeJia. <br /> II S<ltld* <br /> II.. .. <br /> - q.Ar <br />C",eL Detention Basin with Conlrollod Releasc 1'0110w<<l by a Filter Media <br />~W.;;,-- ~.S.-",- <br /> Sand. <br /> " M,S,-Maximum <br /> Surcharge <br /> / _A, <br /> Sand" <br />Permanent <br />Storage '. <br /> .... ~. - 'I-A, <br />Case 2: Retention Pond with Controlled Surcharge Rclea-<e. followed by a Media Filler <br />~ vW.S. Define the Fraction of the Watef <br />- Surface over Rctonlion "Pond" as. <br /> " 'r [A..-;.,,] <br />~A. A, <br />.J". <br />Permanent Sand" <br />Storage ., <br /> I: '-=:J - 'l'Ar <br />Casc J: Combination Retention Pond & Medin Filter Without Controlled Rden." to Filter <br />Fi~_ 2 - Three Arrangements of Filters with Detention. <br />