International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 06 | June 2022
p-ISSN: 2395-0072
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Performance Evaluation of Floating Treatment Wetlands Integrated with Microbial Fuel cell for the Treatment of Dairy Wastewater Shreya S. Surve1, Y. M. Patil2 1UG
student, civil Engineering, Rajarambapu Institute of Technology, Maharashtra, India. civil Engineering, Rajarambapu Institute of Technology, Maharashtra, India. ---------------------------------------------------------------------***--------------------------------------------------------------------and nitrate concentration. Because of this water can't be use Abstract – The objective of the study was to develop 2Professor,
for any purpose. That’s why we have to treat wastewater and then reuse the water.
laboratory scale model of Floating Treatment Wetlands Integrated with microbial cell. The Canna Indica plants were used for the Floating Wetland (FW). The 9-volt current were supplied to the microbial cell. The treated wastewater was collected at 4 different time cycle (30min, 1hr., 2hr. and 4hr.). Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and PH tests were conducted on the treated water. The result after 4th hour is good. At 4 hour the Biological Oxygen Demand (BOD) was 314mg/lit also Chemical Oxygen Demand (COD) was 314 mg/lit. After 2 hour we found the pH in below 7.7. The study concludes that as the reaction time increases the BOD and COD were sufficiently removed and the pH is in between 5.5 to 7.5.
For treating wastewater, we have some treatment that are used in dairy. For treating wastewater, we used Electrocoagulation Process, Reverse Osmosis (RO) and Nano Filtration (NF), Natural Coagulants, Up flow Anaerobic Sludge Blanket, Constructed Wetland, activated sludge process, aerated lagoons, aerobic bioreactor, trickling filters, sequencing batch reactor (SBR), up flow anaerobic filters, and bio coagulation. Most of the dairy choose aerobic process for the wastewater treatment. But because of aerobic process we lose lots of energy. To conduct aerobic process, we need to give continuous supply of oxygen to aeriation tank for 12 -14 hours and for that we need electric pump. Electric pump needs energy to supply oxygen. For aerobic process we lost lot of energy and money. But instead of aerobic process we use microbial cell then we conserve energy.
Key Words: BOD, COD, pH, Floating Treatment Wetlands, Microbial cell, Wastewater.
1. INTRODUCTION India is a global powerhouse of agriculture and related products. Milk is one among these products. India produced large amount of milk and milk product. From the dairy industry we achieving food security, generation of employment opportunity for women and regular source of income. Dairy is most important and fast-growing industries [1]. Nearly 160 million children around the world receiving benefits from the milk. Dairy industry is equally important in developing economics in countries like India, for providing nutrition support, employment opportunities for women, economical support to rural area for development. In 1998 India become largest country for milk production than US. 22% of the global milk production in 2018. Nearly 183 million tons of milk produced in India per day. From that milk variety of products are produced in India. Such as yogurt, paneer, butter, cheese, dried milk, ghee, etc. Amul, Mother Dairy, Nestle, Gokul, Chitale, etc. are the famous dairy companies in India.
Constructed wetland also new technique to treat the wastewater. Floating wetland is most economical method to treat the wastewater. In floating wetland, the aquatic plants allow to grow on artificial platform in which the roots of the plants are inside the water. Floating treatment technique properly remove solid particles, suspended particles, pigments, harmful dyes from textile industries [3]. Floating treatment wetland was used for treatment of wastewater generated from the municipal. It removed BOD, COD also harmful bacteria, chloride from the wastewater [4]. It is very easy to maintain also very economic. It can’t produce harmful product [5]. Phragmites australis, Glyceria maxima, Iris pseudacorus, Canna indica, Typha angustifolia, Wachendorfia thyrsiflora, Typha latifolia, etc. plants are used in the Floating treatment wetlands [6]. The objective of this study was to develop the laboratory scale model of Floating treatment wetland integrated with microbial cell. For the wetland select appropriate plant. Evaluating the laboratory scale model at 9-volt current at specific time interval such as 30 min., 1hr, 2hr and 4 hr. The analyzing BOD, COD and pH of the treated water at specific time interval.
But the dairy industry produces large amount of water pollution. For 1 liter production of milk 3 liters of water are used. This water comes from various stages from dairy industry such as cleaning system, technological process, cooling system, steam generation. Those waters contain organic matter, fats, carbohydrates, proteins and phosphate
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