Pemanfaatan Air Limbah Pupuk ZA II Sebagai Penetral pH Dalam IPAL Pabrik Pupuk X

Latifiara Zahra Auly (Program Studi Teknik Lingkungan Universitas Pembangunan Nasional “Veteran” Jawa Timur)
Euis Nurul Hidayah (Program Studi Teknik Lingkungan Universitas Pembangunan Nasional “Veteran” Jawa Timur)

Journal Serambi Engineering (JSE)
Vol. 9 No. 3 (2024): Juli 2024

The use of water in industrial activities is a problem that needs to be given strong attention to always be used as a benchmark for water quality, especially in the industrial activities of PT Petrokimia Gresik. This research aims to determine the effectiveness of ZA II factory wastewater as a substitute for NaOH in the pH neutralization process. The effectiveness of ZA II fertilizer wastewater as a pH neutralizer can be determined by testing the pH, TSS and PO4 levels. The method used in this research is neutralization. The variation used is a mixture of neutralized water, NaOH and ZA II waste water. The NaOH used was 0.1 ml; 0.3 ml; 0.5 ml. Based on the research results, it is stated that ZA II fertilizer wastewater can increase pH levels because of its alkaline nature, from 6 to 8. Utilizing ZA II wastewater can reduce the cost of using NaOH, which is relatively expensive. This research can reduce the cost of using NaOH 89.3% cheaper than before, namely IDR 9,000,000/month.