C Campus A Trisakti University is one of educational institution that have six laboratory and in laboratories happen experiment laboratory activity that use chemical ingredient. This experiment is continue experiment from experiment that have ever done before like removal COD organic in laboratory wastewater in odd semester 2004/2005. Campus A Trisakti University use fotocatalysis process with UV light. In first experiment use activated carbon that activated with chemical process (ZnCl2), activated carbon weight variation using in this experiment start from 100 mg until 1200 mg with 1 hour as detention time and use wastewater on April. ln second experiment use some activated carbon but different weight and detention time variation activated carbon. Activated carbon weight variation use in this experiment are 100 mg, 300 mg, 500 mg,800 mg, and 1000 mg. and detention time variation use in this experiment are 24 hour, 48 hour, and 72 hour, and use wastewater from April, Mei, and June. In experiment use activated carbon that activated with physical process (H2O) use weight activated carbon variation : I 00 mg, 300 mg, 500 mg, 800 mg, and I 000 mg, and use detention time variation : 24 hour, 48 hour, and 72 hour and use wastewater from April, Mei, a d June. The best weight activated carbon for removal heavy metal ions that include in wastewater is 1000 mg with 48 hours as the best detention time. Experiment result in April wastewater use coal that activated with chemical process with ZnCl2, removal presentation iron heavy metal ion, zinc heavy metal ion, and cupper heavy metal ion are :58,963%, 37,395%, and 43,2~9%, on Mei wastewate , iron heavy metal ion, cupper heavy metal ion, and chrom heavy metal ion have removal presentation : 50,574%, 45,933%, and 43,298%,and in June wastewater iron heavy metal ion, zinc heavy metal ion, and plumbum heavy metal ion have removal presentation : 3,707%, 92, 154%, and 90,226%. Experiment result in April wastewater use coal that activated with physical process with H20, removal presentation iron heavy metal ion, zinc heavy metal ion, and cupper heavy metal ion are : 97,372%, 48,296%, and 75,003%, on Mei wastewater, iron heavy metal ion, cupper heavy metal ion, and chrom heavy metal ion have removal presentation : 66,231 %, 65,979%, and 80,002%, and in June wastewater iron heavy metal ion, zinc heavy metal ion, and plumbum heavy metal ion have removal presentation : 25,320%, 92, 155%, and 90,227%.ln this experiment use shaker for mix between activated carbon and wastewater with 150 rpm as shaker speed and use centrifugar for centrifugation liquid for 10 minute with 3000 rpm . Calculation result R2 langmuir isoterm when use activated carbon (ZnCli) are R2 for Fe is 0,8447, R2 for Cu is 0,99767, R2 for Pb is 0,8595, R2 for Zn is 0,9873, and R2 for Cr is 0,8126. Calculation result R2 langmuir isoterm when use activated carbon (H20) R2 for Fe is 0,9931, R2 for Cu is 0,9825, R2 for Pb is 0,9962, R2 for Zn is 0,9918, and R2 for Cr is 0,9925