RANCANG BANGUN JAR TEST PADA LABORATORIUM PENGOLAHAN LIMBAH

Abstract

The design and construction of a tool is the process of making a tool starting from design to testing the tool. Jar Test is a method for testing the ability of a coagulant in the water purification process. A coagulant is a material that functions to bind small particles into large particles so that they settle because the particles are large in the water purification process. Coagulants are divided into 2, namely natural coagulants and synthetic coagulants. Natural coagulants are coagulants that are found in nature such as alum, while synthetic coagulants are coagulants made through a chemical process using certain raw materials such as PAC (Poly Aluminum Chloride). Test analysis of the results of the coagulation process, namely turbidity, TSS and TDS. The Jar Test tool consists of a stirrer motor, stirrer and a tool holder in the form of a box made of aluminium, acrylic and aluminium composite panel (ACP). The Jar Test is essential in waste treatment laboratories, particularly in the practical analysis of environmental pollution and waste processing. The objective of this study is to determine the design of the Jar Test, the types of materials, and the types of mixers that are both effective and efficient in the coagulation process. The double T mixer demonstrates effectiveness in reducing turbidity, whereas the T mixer is effective in addressing total suspended solids (TSS). This research also resulted in the development of a practical device, thereby increasing the inventory of equipment available in the waste treatment laboratory Keywords: Jar Test, Coagulation, turbidity, TSS