ABSTRAK
Pengurangan kadar amonia pada limbah minyak PT. Chevron, Duridilakukan dengan metode elektrolisis. Kondisi optimum didapatkan denganmelakukan elektrolisis larutan amonium sulfat di berbagai pH pada potensial0,6V; 1,5V; dan 2V. Penambahan NaCl pun dilakukan pada elektrolisis amoniumsulfat. Hasil percobaan menunjukkan elektrolisis amonium sulfat pada pH 10menggunakan potensial 2V dan ditambahkan NaCl memiliki penurunan hingga67,48%. Akan tetapi, kondisi optimum ini tidak diterapkan pada limbah minyakkarena kadar amonia di dalam limbah minyak terlalu kecil. Elektrolisis amoniadalam limbah minyak dilakukan pada pH 8 tanpa penambahan NaCl denganpotensial sebesar 2V. Penurunan kadar amonia pada limbah minyak mencapai61,81%.

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ABSTRACT
The removal of ammonia levels in the oil waste PT. Chevron, Duri wasdone by electrolysis method. The optimum conditions were obtained by theelectrolysis of ammonium sulphate solution at various pH at some potential of0,6V; 1,5V; and 2V. The amount of NaCl addition was also varied on theelectrolysis of ammonium sulphate. The experimental results showed that at pH10 using the potential of 2V and the present of NaCl had decreased the amount ofammonia content as much as 67,48%. However, these optimum conditions werenot applied to the oil waste because ammonia levels in the waste oil was toosmall. The electrolysis of ammonia in the oil waste was performed at pH 8without the addition of NaCl with a potential of 2V. Decreased levels of ammoniain the waste oil reached 61,81%.