This research had the objective to study the waste water treatment from the mohom textile
manufacturing industry by using microorganisms that could be separated from 1 2 bleached waste
water samples and mohom textile manufacturing dye-colored contaminated soil. In this case, 1 2
isolated microorganisms were obtained. Then, the microorganisms that were capable of removing the
colored waste water from the mohom textile manufacturing industry were selected from a test on the
capability of removing nutrient agar (NA), which contained the textile dyes. It was found that there
were six isolated microorganisms comprising S2 B, S3 E, S4 A, S4 E, S7 A, and S7 B that had the
capability to remove dyes in synthetic waste water with colored dye added. It was also found that
three isolated microorganism consisting of S2B, S3E, and S7B had a high ability to remove color. All
three microorganism isolates were rod-shaped bacteria with a gram-positive color. After studying the
16S rRNA gene sequencing, it was found that the S7A, S2B, and S3E isolates had the 16S rRNA
sequence that was 99.66% similar to Bacillus thruringiensis, 99.86% Bacillus cereus, and 99.59%
Bacillus cereus, respectively. The testing on the optimum condition for color removal in synthetic
waste water of the S7A microbial isolates was the condition with sucrose of 2.0 grams per liter, urea
fertilizer for 2.5 grams per liter, equal fertilizer for 1.0 gram per liter, the initial acid-based solution
was 10.0, and the initial germ was 10.0%. In this case, the capability of color removal was 76.32%,
and it was effective in reducing the fouling factor (FCOD) by 42.5% on Day 4 of the experiment.
Furthermore, it was effective in removing the color from the waste water from the mohom textile
manufacturing industry under suitable conditions of 4 1 .6% . It was also effective in reducing the
fouling value (FCOD) by 22.3% in four days.