Use of Natural Coagulants for Primary Treatment of Dairy Wastewater Treatment- A Review

Bhosale, S. M.; Chavan, Mayur C.; Sutar, Pramod D.

doi:10.31142/ijtsrd12712

Cited by 1 publication

(4 citation statements)

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“…oleifera is a tropical plant from the family of Moringaceae, that is cultivated rapidly in the arid zone and has an average height of 10 -12 m, commonly known as moringa, drumstick [1]. Dry seeds of M. oleifera are water-soluble and is used as a natural coagulant to treat effluent and turbid water on a large scale [2]. M. oleifera is a medium size multipurpose tree found in northwest India and native to various parts of Asia, South America and Africa [3].…”

Section: Introductionmentioning

confidence: 99%

“…Application of alum and lime is a conventional coagulant used for water treatment worldwide. If other chemical such as sodium hydroxide is implemented to treat the water the total cost increases annually which is quite difficult for developing countries to cope with [2,5]. The natural coagulants are extremely efficient in degradation of Physico-chemical properties of wastewater like chemical oxygen demand, biochemical oxygen demand, turbidity, colour, etc [1,6].…”

Section: Introductionmentioning

confidence: 99%

“…Table 1 Efficiency of M. Oleifera seeds to treat turbidity [30]. The application of these natural coagulants reduces sludge volume by increasing the floc size, as they are having properties like long-chain polymer, high cationic charge density, high biodegradability, non-toxic, and eco-friendly [2,7]. To achieve this sustainable development, it is necessary to put into service the plant-based natural coagulant [3,8].…”

Section: Introductionmentioning

confidence: 99%

“…To achieve this sustainable development, it is necessary to put into service the plant-based natural coagulant [3,8]. It is an eco-friendly and cheaper method for purification of industrial wastewater as compared to common coagulants like alum [2][3][4]9]. Table 2 shows the comparison between chemical (common) coagulant and natural coagulants.…”

Section: Introductionmentioning

confidence: 99%

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Potential of Moringa Oleifera Seed as a Natural Adsorbent for Wastewater Treatment

2022

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The present study deals with the appropriateness of the coagulation process using natural coagulant Moringa oleifera seed. Natural coagulants are useful for the treatment of wastewater because of its sustainability, cost-effectiveness, non-toxicity and lesser quantity of sludge formation. M. oleifera seed having a chemical composition of polypeptides having 6 amino acids like arginine acid, methionine acid, glutamic acid, phenylalanine, threonine, and histidine. M. oleifera is also known as a cationic polyelectrolyte and having molecular weight 6,000 to16,000 Dalton. The main objective of research work is the application of the M. oleifera seed as a natural adsorbent to treat synthetic dairy wastewater. The effects of pH, agitation time, the dose of sorbent and efficacy of M. oleifera seeds kernel for turbidity removal was assessed. M. oleifera seed eliminates turbidity 95 % and colour 94 % using 0.22 gm pod powder, and 0.2 L of 1.0 g/L synthetic dairy wastewater. Naturally dried M. oleifera seeds remove turbidity 95 %, sundried seeds remove turbidity 52 % and oven-dried seeds 45 %. As naturally dried M. oleifera pod having more surface area for adsorption and inter-particulate bridging which extract the extra active ingredients. pH range between 5 and 8 is more suitable to degrade the turbidity and colour. It is concluded that in the presence of an aqueous soluble cationic coagulant protein has great potential to remove the turbidity and colour of wastewater. HIGHLIGHTS oleifera seed having a chemical composition of polypeptides having 6 amino acids like arginine acid, methionine acid, glutamic acid, phenylalanine, threonine, and histidine oleifera seeds consist of crude fiber, lignin, hemicellulose, and cellulose. It also contains amino functional groups (R-NH3), carboxyl group (C=O), and fiber carbonaceous. The functional group present in M. oleifera seeds is dissociated during the adsorption process at various pH oleifera has good property of coagulation-flocculation (C-F) The effectiveness of naturally dried seed kernel is more effective than other seed kernels GRAPHICAL ABSTRACT

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Section: Introductionmentioning

confidence: 99%