Analysis of liquid waste in weaving home industry at Nusa Penida, Klungkung, Bali, Indonesia

Introduction: The existence of regulations using clothing made from traditional Balinese fabrics cloth called “endek” has caused the demand for woven fabrics to increase. One of the traditional woven fabric handicrafts starting to be recognized and favored by the public is the Cepuk and Rangrang woven fabric from island of Nusa Penida. Currently, liquid waste from weaving home industry activities has not been processed.  The purpose of the study was to measure the quality of liquid waste from the weaving home industry and compare it with the quality standards of liquid waste for businesses and or textile industry activities.
Method: This study was descriptive, conducted in Nusa Penida District, Klungkung Regency. The sample size was 25, taken by purposive sampling from nine craftsmen actively carrying out the production process with repetition three times. Measurement of liquid waste quality was carried out at the Laboratory of Panureksa Denpasar. The parameters examined are mandatory test parameters including physical parameters (temperature, TDS, TSS and color) and chemical parameters (total chromium, total ammonia, BOD5, COD, sulfide, oil and fat). Data analysis was carried out by comparing the measurement results with the Liquid Waste Quality Standards for Textile Industry Businesses and Activities according to Bali Governor Regulation 16 of 2016.
Result: The results showed an average temperature of 27.48o C, TDS levels of 6,095.20 mg/L, TSS 1,090.76 mg/L and color 2,216.56 TCU scale.  The chemical parameters showed average levels of total chromium 2.3912 mg/L, total ammonia 1.6068 mg/L, BOD5 675.84 mg/L, COD 1,286.72 mg/L, Sulfide 0.2395 mg/L, oil and fat 1,340 mg/L. Based on Bali Governor Regulation No. 16 of 2016, the parameters of temperature, total ammonia, Sulfide, Oil and Fat meet the quality standard requirements. While the parameters of TDS, TSS, color, total chrome, BOD and COD do not meet the quality standard requirements because it exceed the maximum allowable levels.
Conclusion:  It is recommended that weaving craftsmen carry out liquid waste treatment before disposal in the environment.