Laserfiche WebLink
05/26/2009 13:27 951827334 DOUGLAS KUNEV PAGE 09114 <br /> promote dissolution of gases, minimize escApe of odors, and <br /> require less land area for a given treatmeAt volume. <br /> Lagoon shape affect a 3ng of its �Cntents, <br /> ar ands re p ly <br /> promotelbest. mixing, but <br /> +alli °cal and x omay be iised if their <br /> 1 to width rat#.a does ead 4:1. 1 The pariphery <br /> sh d b+e fo ae coke , islaknds,. and coves <br /> ch contribute little additional Mater v6l to -the A <br /> lagoon, and may be a source of nuisance conditions. Special <br /> cases y justify long narrow lacjcorw,, espicially for flow- <br /> through units in xultiple-staqe system, where <br /> ion and d*-slufting will be a Iished by <br /> dragline. Lagoon bott=w should he as fld. possible to <br /> pr=Wte unuo= 4istritutica of wanton <br /> Side slopes are primarily determined by soil type, with more <br /> stable sails adaptable to steeper slopes. Steep slopes <br /> belows waterline disonuraand mosquito <br /> habitats Flatter slopes, no s1, sh d be used above <br /> the maximum waterline to allow easy estab <br /> cover and safermoving. o ail t km is at <br /> least 5 feet aide for equipinent travel and operation. <br /> Ubahkmmt height should be increasedduring construction by <br /> the tint needed to ensure that designelevation will <br /> be achieved a increase should <br /> nv ly be 5 percent. <br /> Imccate inlets near the center e la if p sible to <br /> encou=qe solids distributiont Via impoundnent. <br /> Multiple housing units permit use cif several inlets <br /> o further aid in uniformtion. Vie of gutter <br /> cleavers or augers to movemanuree Tinto the lagoon <br /> y result in large deposits at iieloading point, <br /> t if thepoint is beyond the embankzl6ent slope and' <br /> loading pointsare veil distributed, bacterial activity and <br /> bubblingWo gill eventually distribute waites through the <br /> lagoon. <br /> A&ILtional lagoon d t design <br /> (Figure 1' should be provided st6rage between <br /> projectedanned will be t toplan. At <br /> 50 days of storage should be providedin mild <br /> climates; tiore storage will its cold climate* <br /> to avoid applying t oaf z ground. <br /> shouldC11, i t so t efflu t <br /> y hol til it am be effectively utilized as a crop <br /> nutrient source. Additional depth should rovided to <br /> allow for precipitation 15-y 24 storm <br /> fall on a lag a , seats when e <br /> lagoon is at the full level. Extra capacity must also be <br /> planned if other surfacewill enterithe lagoon. An <br /> ti4 1 1 ft. of freeboard ( i i re between <br /> • i <br />