TOKSISITAS LIMBAH CAIR INDUSTRI BATIK TERHADAP MORFOLOGI SISIK IKAN NILA GIFT (Oreochomis nilotocus)

Abstract

The development of batik industry has increased along with the increasing of society requirement of textile material. Colored liquid in the batik industry has the potential to pollute the environment, so it is necessary research that aims to determine the toxicity of batik industrial waste to morphology of Nila Gift fish (Oreochromis niloticus). The test results of COD content contained in the batik industrial liquid waste is 4951,75 mg/L , analysis of TSS content of batik wastewater showed 448 mg/L, while chromium (Cr) content was 7.0 mg/L, and pH was 6,9. The value of LC-50 96 hours of batik industrial liquid waste is 0.73%, so that the treatment concentration is 0%; 0.37%; 0.46%; 0.55%; 0.64%; and 0.73%. The results showed that the scales exposed directly to batik liquid waste occurred attachment of different substances in each treatment. Treatment with the highest concentration of 0.73% shows the result of attachment of foreign substances that meet the cross section of Nila Gift fish seed scales.

Acute Toxicity of Household-Scale Lebak Batik Industrial Wastewater on Common Carp

“…This is different from the characteristic test of the batik industry wastewater in Yogyakarta, where BOD, COD and TSS values were obtained that exceed the quality standard (Joko dkk., 2016;Rahmadyanti & Audina, 2020). Even though this waste has gone through biological and physicochemical treatment processes (Indrayani & Triwiswara, 2018), another study that tested the quality of batik wastewater in Sidoarjo (Tangahu dkk., 2019) also produced COD and TSS values above the maximum limit for textile industrial wastewater (Andriani & Hartini, 2017). The high levels of COD in this study indicate that there were high concentrations of organic and inorganic materials that can harm the aquatic environment (Devi dkk., 2017).…”

“…This means that it can give a lethal effect to 50% of the individuals tested at this concentration. Another study that tested the toxicity of batik industrial wastewater on tilapia stated that at a concentration of 1%, it caused 9.6% of fish mortality with an LC50 value of 96 hours at an interval of 0.625-0.75% (Andriani & Hartini, 2017). Susilo dkk., (2021) Liquid waste toxicity tests can be classified into several levels.…”

“…A previous study about the toxicity test of batik waste on aquatic biota, especially fish, has been carried out in other locations. With a concentration of 0.73% of the batik industry, wastewater can cause the attachment of foreign substances found in the cross-section of the Nila Gift fish seed scales, where longer exposure can cause death (Andriani & Hartini, 2017). Other aquatic biota mortality, namely carp, also occurred after exposure to batik industry wastewater at a concentration of 6% for 24 hours (Pratiwi dkk., 2016;Safauldeen dkk., 2019;Tangahu dkk., 2019).…”

Phytoremediation of batik industry wastewater using water hyacinth plant as a medium for maintaining Cyprinus Carpio L.

“…Damage to goldfish scales can only be seen from the color of goldfish scales. Following Andriani and Hartini's research, the gift of tilapia seeds showed foreign substances attached to the scales exposed to batik waste 14 . Before the occurrence of lethality or death, goldfish experience changes in behavior.…”

Phythoremediasi Chromium Total (Cr-T) menggunakan kayu apu (Pistia stratiotes L.) pada limbah cair batik

“…Limbah ini harus diolah dahulu sebelum dibuang ke lingkungan. Jika langsung dibuang ke lingkungan akan menurunkan kualitas lingkungan dan merusak habitat yang hidup sekitar aliran sungai (Andriani & Hartini, 2017).…”