2.1 Coagulants: sources and challenges 10 2.2 Types of flocculant: sources and challenges 2.2.1 Synthetic flocculant 2.2.2 Biopolymeric flocculant - bacteria 11 11 13 . The stem is cooked in various ways in South Indian cuisine and in some parts of West Bengal. The composition of hydrogen was higher in banana stem juice compared to the banana stem. Dishes such as vazhaithandu poriyal, vazhaithandu kootu (banana stem cooked with lentils), vazahaithandu thoran (banana stem tempered and garnished with coconut) are popular in Tamil Nadu. Healthy Tips To Keep In Mind . To prepare the juice, add the banana stem, roasted cumin, yoghurt, pepper and salt into the blender. We will be providing unlimited waivers of publication charges for accepted research articles as well as case reports and case series related to COVID-19. This drink has lots of medicinal benefits in them. The speed was then reduced to slow at 30 rpm for 20 minute to keep flocs particles uniformly suspended. Banana stem juice (Vazhaithandu) juice is a famous beverage served by many health stores, street vendors and even restaurants in South India. The stem of the banana is low in calories but high in fibre content. The data for standard inulin was used to construct the calibration curve. Appropriate pH and dosage of the natur al coagulant was observed to be 4 and 1000mg/L respectively. The effectiveness of banana stem juice as a natural coagulant for treatment of turbid water was investigated. The mixture was subjected to 3 min of rapid mixing at 180 rpm followed by 20 min of mixing at 10 rpm and 30 min of settling. A program runs the analysis automatically and results were given in percentage. To avoid any fermentation, the coagulation experiments using this banana stem juice as a natural coagulant were carried out on the same day. Horoscope 2021: Health Predictions For All Zodiac Signs. Due to its numerous health benefits, it is said that drinking a glass of Banana stem juice in the morning will keep you fit. This is due to the high-moisture composition of that compared to the banana stem. Response Surface … In this study, four plant-based natural coagulants (banana peel powder, banana stem juice, papaya seed powder and neem leaf powder) were evaluated for the removal of turbidity, chemical oxygen demand (COD) and total suspended solids (TSS) from municipal wastewater. Characteristics of spent coolant wastewater. For biological treatment, large area requirement, high maintenance, long retention time, and odour problems are usually associated with pond treatment methods. Detoxification and Digestion: The juice of the banana stem helps in flushing out toxins from the body. where is turbidity of raw spent coolant wastewater (NTU), is turbidity after treatment (NTU), and is turbidity of raw spent coolant wastewater (NTU). Significant linear relationships between turbidity and TSS (R2 = 0.67-0.88) and turbidity removals and COD removals (R2 = 0.68-0.8) were observed. It is estimated that more than litres of metal-working fluids (MWFs) were used worldwide annually, and the waste could be more than ten times the usage, as the coolants have to be diluted prior to use [3]. Banana stem is rich in potassium and thus if regularly taken, it can cure stomach pains.The outer parts of the stem can be used to treat heat burns. Generally, the percentage of COD, SS, and turbidity removal by using banana stem juice showed tremendous potential as a plant-based natural coagulant in the treatment of spent coolant wastewater. Water and wastewater. Due to high energy consumption or application of variety of chemicals, this would decrease the processing efficiency and increase cost of process [15]. V.J. The fresh juice of banana stem was stored in a refrigerator at 7ºC to ensure its freshness. The mixed pith was then filtered and the juice was collected. where is weight of the disk + solids (g), is weight of empty filter disk (g), is volume of sample (mL). Therefore, the settlement of the suspended solid will reduce the turbidity and the COD of the sample waste in flocculation process during jar test analysis. The samples were transferred into 20 L plastic containers and then closed, sealed tight, and labelled to avoid any oxidation and contamination before being transported to the laboratory. Thus, a large amount of spent coolant wastewater generated from metal-working operations which is generally in high COD (Table 1) has become a great concern for the manufacturing industries. Newer Post Older Post Home. The composition of principal elements of the banana stem was nearly similar with the result obtained by Bilba et al. Inulin has high bonding capacity as mentioned by Eissens et al. From the HPLC result, the peak of inulin was at 10- to 15-minute retention time, and the peak area that has been recorded was equal to 8191004.35. The effectiveness of banana stem juice as a natural coagulant for treatment of spent coolant wastewater was investigated . To make the juice, combine chopped banana stem and water and grind it in a mixer till it becomes smooth. [25]. Strain the juice using a mesh sieve. where is COD of raw spent coolant wastewater (mg/L), is COD after treatment (mg/L), and is COD of raw spent coolant wastewater (mg/L). Matured banana plants were collected from Serdang, Selangor, Malaysia. Values of p-value for bio-flocculant yield from banana pseudostem and rice straw Table 4.2 Table 4.3 Table 4.4 Table 4.5 Table 4.6 Table 4.7 and Table 4.8 Intensity (cm-1) of FTIR extracted pectin from banana pseudo-stem. In Malaysia, the production of commercial varieties of banana has increased by 24–27% over the decades giving an amount of 27,453 hectares in 2009 with Johor, Pahang, and Sarawak as the largest banana-producing states [16]. They found that the compositions of carbon, hydrogen and nitrogen of the core of banana stem (pseudostem) were 36.83%, 5.19%, and 0.93%, respectively. The usage of banana stem juice as a natural coagulant in COD, SS, and turbidity removal, however, is known to be limited in the published literature. The desired amount of coagulant was added to spent coolant wastewater and stirred at the “flash mixing” speed of approximately 120 rpm for 1 minute. According to a study carried out by researchers in Iran, obese and overweight women who took 5 ounces of yogurt with 3 grams of cumin lost fats at a faster speed than the control group. The flowers, fruit and stems can be eaten, the leaves can be used as plates and the bark can be used to make paper. The chemistry of coagulant depends on the pH of any solution during the flocculation process. However, percentage removal for turbidity at pH 7 was found slightly less (90.9%) compared to the percentage removal at pH 5 (highest percentage removal, 95.2%). Make a smooth paste. Banana Stem: 1 cup, chopped; Freshly squeezed lime juice: 1 tablespoon; Water: 1 cup; A pinch of salt and sugar to taste. The temperature of the analyzer oxidation was set at 1000°C. Coagulation experiments using jar test were performed with a flocculation system where the effects of spent coolant wastewater pH as well as banana stem juice dosage on coagulation effectiveness were examined. Coagulant There are several treatment methods used to treat waste metal-cutting fluids [2], namely, chemical coagulation [6], adsorption [7], microfiltration, and ultrafiltration [8–10], as well as biological (aerobic and anaerobic) process [11–14]. The COD test was measured using UV Spectrophotometer HACH model. 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