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<br />. <br /> <br />. <br /> <br />- 29 - <br /> <br />TABLE 4 (Continued) <br />PROCESSED SLUDGE AND ASH CHARACTERISTICS (mg/kg) <br />(Based on 1978 data) <br /> <br />Anaerobic Digestion <br /> <br />Composted <br /> <br />Blue Lake Sludge <br />(est ima ted) <br /> <br />7 <br />340/290 <br />1400/850 <br />. .4 <br />70 <br />400/330 <br />980 <br />6.8 <br />42,000 <br />14,000 <br />670 <br /> <br />4 <br />200/160 <br />1150/670 <br />.2 <br />50 <br />250/170 <br />40 <br />4.6 . <br />10,000 <br />8,840 <br />2,850 <br /> <br />Cd <br />Cr <br />Cu <br />Hg <br />Ni <br />Pb <br />Zn <br />PCB <br />N <br />P <br />K <br />