PERFORMANCE EVALUATION OF SEWAGE TREATMENT PLANT USING BIOCHIP MEDIA IN MBBR TECHNOLOGY : CASE STUDY “X GARMENT, CENTRAL JAVA. LJEE [Internet]. 2025 Jan. 7 [cited 2026 Oct. 18];5(2):9-17. Available from: https://journal.ar-raniry.ac.id/index.php/lingkar/article/view/5583