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I.JAN-16-1996 15:19 REGENESIS <br /> P.04 <br /> ■ <br /> The product releases oxygen when it comes in Contact wilh water as shown by the following equation; <br /> M9O2 + H2O --,Q- 1/202 f + Mg(OH)2 <br /> ORC will stop releasing.oxygen when dry and will again release when rehydrated. The by-products of the reaction are <br /> oxygen and ordinary magnesium hydroxide,which make ORC environmentally safe to use. <br /> KINETICS OF OXYGEN RELEASE FROM ORC <br /> G 601A <br /> `w,a«rwxx.."°.ui•�:,�a bans...,. ryy..�_:.,' �wr�.w.. ..M3�nww«....<........,°an.:<:'u.`.".«.`" '"i::;::..'.;?<.; i�"': <br /> aOW N�.,r w.A tnVa\dr7af•' A .� �+ a w aqk,� 'i�-.+s <br /> r1j Y y< •r .Y" F C+4.k�wµ 'ff5'F:•W s��jv "\rr`r ) «ia "'sWa w:. a <br /> ,-] di,� ,�"yyy�++++++W'�jYW y \ pI•'4'f d � � °n��°i'bS e«w: {�fsa." pn F <br /> S 30K � '�»yrs1}Y9'CI^ <br /> 20Y 5*iLA.\ a f; J. r{.' •f 'k+ y,`: .,v¢.�s � <br /> oK <br /> ,2Jd,.. r . t 4 t... .�S:•i..»,�.i��!..,;' <br /> ° so 1 <br /> iQ0 090 000 ' <br /> 760 a20 <br /> DAYS <br /> P'gure 1 pre$entS the Oxygen,releaSe klnehCs of ORO. The product releases about 10%of the available a <br /> few weeks and then releases the balance over a period Of sir months to a year depending on the levo!of contaminant flux.. <br /> ORC should be considered for contaminated groundwater sites where aerobic bioremediation is the appropriate <br /> treatment technology. For application, ORC powder is mixed in a carrier matrix and contained in inert filter socks. A <br /> string of ORC Filter Sacks is laced together and lowered into a well through the length of the contaminated saturated <br /> zone where contact with groundwater will initiate the release of oxygen. ORC Filter Socks are configured for two-, <br /> four-, and six-inch diameter wells (see Figure 2). When the oxygen returns to background levels, the socks containing <br /> ORC are removed from the well and, if necessary, new charges of ORC are added. <br /> ORC OXYGEN BARRIER <br /> i sa�mf50�7l�i'I!b971r :.v,.. .r.Er. 'S ... <br /> iss •_ __ a "" + <br /> ... .. .. <br /> ORC Socks in the WQA <br /> Figure 2 depicts the Oxygen Barrier <br /> concept which prevents plume migration. <br /> ©Page <br />