Air Quality Monitoring System with External Device Controlling Capability

Abstract

Air Quality Monitoring System with External Device Controlling Capability is the equipment which measures and records the climatic data with the capability to control external devices (e.g. blower fan or air purifier) to rectify the surrounding atmosphere according to the air quality at the moment and other users' pre-defined conditions.

Objective

ปัญหาของสภาพอากาศในปัจจุบันต้องการอุปกรณ์ที่ไม่เพียงแต่วัดคุณภาพของอากาศ แต่ต้องมีความสามารถในการแก้ไขสภาพอากาศโดยรอบในกรณีที่คุณภาพของอากาศไม่เหมาะสม

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คณะวิศวกรรมศาสตร์

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A small hydroponic vegetable growing system simulation kit with water flow system that monitors, maintains and controls the amount of fertilizer in the system.

คณะวิทยาศาสตร์

Improving surface water quality via coagulation using Moringa, Roselle, and Tamarind seed extract.

This study aimed to investigate the effectiveness of extracts from moringa seeds, roselle seeds, and tamarind seeds as coagulants to improve water quality in surface water sources. Extracts from these seeds serve as environmentally friendly coagulants and provide alternative options for enhancing surface water quality. The turbidity of surface water sources ranged between 14 and 24 NTU. The coagulation process used the Jar Test method, where the moringa seed, roselle seed, and tamarind seed extracts functioned as both primary coagulants and coagulant aids. In the preparation process, the seeds were finely ground and extracted using a 0.5-M sodium chloride (NaCl) solution. These extracts were then applied as coagulants to reduce turbidity and enhance water quality, with each concentration tested in 300 ml of water. The results indicated that the most effective way to remove turbidity using 2,000 mg/L of moringa seed extract, achieving a turbidity reduction of approximately 73.19% at a cost of 0.0309 baht per 300 ml of water. Followed by Tamarind seed extract, with a concentration of 4,000 mg/L, followed with a turbidity reduction of approximately 56.75% at a cost of 0.0933 baht per 300 ml. Lastly, roselle seed extract at 6,000 mg/L achieved a turbidity reduction of approximately 32.67% at a cost of 0.0567 baht per 300 ml of water.

คณะเทคโนโลยีการเกษตร