International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
“Carica Papaya & Tamarindus Indica as Natural Coagulant for Treatment of Waste Water from Food Industry”. Darshan S S1, Kiran B M2, Abhishek H M3, Manjunath H S4 1,2,3,4 Department of Civil Engineering Rajeev institute of Technology, Hassan.
---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - Industrial pollutants are most harmful to the
industry, complex organic chemicals industry, and food industry. Industrial wastewaters are considerably diverse in their nature, toxicity and treatability, and normally require pre-treatment before being discharged to sewer.
both environment and mankind. Treatment and disposal of industrial pollutants seems to be great risk for various industries due to its high pollutant concentration. In this study we are treating industrial waste water using natural coagulants such as Carica papaya and Tamarindus Indica.
Food processing in particular is very dissimilar to other types of industrial wastewater, being readily degradable and largely free from toxicity. However, it usually has high concentrations of (BOD) and suspended solid. Compared to other industrial sectors, the food industry uses a much greater amount of water for each ton of product. One of a well-known food industry, chips industry, is also getting bigger in India throughout the years.
The experiments were conducted to determine the optimum dosage, contact time and proportion percentage of natural coagulants (Carica papaya, Tamarindus Indica.). The optimum dosage of Carica papaya and Tamarindus Indica was observed to be 2.5mg/L and 2.0mg/L respectively and the better combination was found to be 60%TI+40%CP mg/L.
The process for chips or any other food processing plants normally uses immense volume of water, yielding large amounts of wastewater that must be treated. Excessive water uses and wastewater production results in economic and environmental burdens to the industry. The wastewater produced could be treated and recycled to the process.
Key Words: Carica Papaya, Tamarindus Indica, Coagulant, Food industry.
1.INTRODUCTION The total supply of fresh water on earth far exceeds human demand. About 96.5% of this water is in the oceans, and out of the remaining 3.5 %, only about 2.5 % is the accessible as freshwater that can be used for human demand. The foremost use of water by humans is for the biological survival. However, water need for the biological survival is not the only issue being discussed in the progressing world today. To cater the increasing population in the present-day scenario it is important to balance the needs of the increasing demography with demand and supply. Therefore, it becomes more important to think in a more sustainable approach w.r.t to recycling of the generated waste water from the industries with more efficient and sustainable treatment methods/practices.
2.1 Problem statement The food manufacturing wastewater contains high concentrations of several organic compounds including carbohydrates, starches, proteins, vitamins; pectin’s and sugars which are accountable for high chemical oxygen demand (COD) and suspended solids. The wastewater resulted from a series of processes (cleaning, cutting, slicing, washing, frying, salting, coating and packing) is one of the significant sources in environmental pollution. The produced wastewater streamed with different levels of pollution load (low, medium and high contamination) are normally collected and treated in an on-site installation or in a municipal sewage treatment plant.
In India, the average water footprint for food consumption is about 800 m3/cap/year. The biggest water use in the food industry is cleaning, processing equipment and food products. This can account for up to 70% of a factory's water usage.
3. OBJECTIVES The objective of this study is:
2. Food Processing Industrial Waste The industrial processes inevitably result in uncontrollable and high production of wastewater which if not treated properly will contaminate the environment. There are many factories contributing to industrial wastewaters such as metal
© 2024, IRJET
|
Impact Factor value: 8.226
|
To determine the efficiency of Carica Papaya & Tamarindus Indica seed as natural coagulant in reducing the higher concentration of BOD, TSS, TDS and Turbidity. To determine the effect on various physio-chemical parameters by varying absorbent dosage and contact time.
ISO 9001:2008 Certified Journal
|
Page 822