#TITLE_ALTERNATIVE#

• Main Author: DEWI HINDRAWATI (NIM : 15308076), ANINDA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25615
• Institution: Institut Teknologi Bandung

<p align = "justify">Most of traditional batik industries are small enterprises that have less than 30 workers each. Due to its huge amount of water usage, batik production including soaking, removing wax from fabric, and decoloring, generate about 2 m3/day wastewater. Some paremeters of water quality, such as BOD, COD, TSS, and pH exceed the standard based on decree from Environment Ministry number KEP-51/MENLH/10/1995. Thus, batik wastewater needs treatment before it can be discharged safely to the environment. There are two treatment alternatives being studied in this final project. The first alternative is coagulation process using Moringa oleifera seed compared to polyaluminum chloride (PAC). The second alternative is adsorption and filtration process using activated carbon and zeolite. Based on the treatment efficiencies, both alternatives should be implemented as a series of treatment to obtain the higher treatment efficiency. In addition, according to technical aspect, material availability, and operational cost, coagulant and adsorbent that has been chosen are PAC and zeolite respectively. After the treatment alternative has been determined, the technical design of batik wastewater treatment was done. The treatment units consist of presedimentation basin, coagulation and flocculation basin, filtration and adsorption unit, and sludge drying bed (SDB) unit. The total cost needed to build those units is Rp41.499.760.00, whereas for operational and maintanance, the cost needed to be paid by each industry is Rp40,600.00/m3. Batik wastewater treatment will be managed by batik organization in Kelurahan Sondakan that will also coordinate with the external parties, which are the local government and non-governmental organization to optimise the system sustainability.<p align = "justify">