Apurav Krishna Koyande

University of Nottingham, Malaysia · Chemical and Environmental Engineering

The present work explores accelerated weathering of limestone (AWL) as an option to combat the climate change problem posed by the still growing carbon footprint. AWL is a promising low-technology solution that sequesters CO2 through the dissolution of calcium carbonate (CaCO3) in water to form calcium bicarbonate. One aspect of the feasibility of...

Global cooling requirements are increasing at an unprecedented rate due to rapid urbanization and population growth, further aggravating climate concerns. Passive radiative cooling is a unique phenomenon that can be utilized to reduce global cooling, energy consumption and alleviate the urban heat island effect. Paints can act as passive cooling de...

Date palm (Phoenix dactylifera L.) has gained increment in cultivation worldwide. An increase in cultivation has a direct and profound effect on date seed waste generation. This study aims to highlight the valorization potential of date seed waste by studying the fiber, sugar, and color profiles of 18 date seed varieties. The indigestibility of neu...

With a rapid increase in population followed by urbanisation and higher land-use demands, there is a shortage of green spaces and urban parks in densely populated cities worldwide. The rise in energy demand and use, especially fossil fuels in the residential and industrial sector, is the leading cause of higher GHG emissions globally. Several decar...

Waste generation from food manufacturing facilities poses a serious hazard like environmental degradation, water pollution, and land pollution due to its high nutrient composition. Specifically, solid waste (powder) disposal requires additional energy sources in terms of scientific treatment, structured collection, and disposal packaging according...

Sustainable Development Goals (SDGs) have been part of much worldwide cooperation in engineering design, nutrients production that contributes towards a better and more sustainable future. This review intends to uncover a potential renewable source that could significantly contribute to various goals under the SDGs. The prospects of algae tackling...

Carbon steel is one of the most employed materials in many industrial sectors due to its unique physical and mechanical properties. However, within a certain period of time, carbon steel-based materials are susceptible to corrosion under operating conditions and corrosion inhibitors are important to extending the limit of use of carbon steel. In th...

Fish skin collagen hydrolyzate has demonstrated the potent inhibition of dipeptidyl peptidase-IV (DPP-IV), one of the treatments for type-2 diabetes mellitus (type-2 DM), but the precise mechanism is still unclear. This study used in silico method to evaluate the potential of the active peptides from tilapia skin collagen (Oreochromis niloticus) fo...

Microalgae have been explored as a sustainable alternative to fuel and feed on natural resources. Microalgae possess numerous advantages over their renewable counterparts such as soybean and palm oil. It does not compete with agricultural land or freshwater for food crop production, making it a potential biofuel source. However, commercialisation o...

The cleaner and sustainable production of biodiesel from toxic and hazardous non-edible seed oils offer a remarkable opportunity to deal with energy crises and provide a renewable substitute to depleting fossil fuels. In the current study, the potential of the novel, toxic and non-edible seed oil of Zanthoxylum armatum was investigated for eco-frie...

A R T I C L E I N F O Keywords: Microalgae biomass Net-energy ratio Culture medium Continuous photo-bioreactor Bio-energy production A B S T R A C T Microalgae are promising sustainable energy sources for biodiesel production due to their rapid photosynthesis growth rate and capacity to be cultivated in wastewater, seawater, or freshwater. Moreover...

Cyanobacteria such as Spirulina platensis secretes numerous biomolecules while consuming CO2 for photosynthesis which can reduce the environmental pollution as it can also be grown under wastewater. These biomolecules can be further processed in numerous pathways such as feed, fuel, pharmaceuticals, and nutraceuticals. This study aims to screen the...

In this study, Hospital wastewater was treated using a submerged aerobic fixed film (SAFF) reactor coupled with tubesettler in series. SAFF consisted of a column with an up-flow biofilter. The biological oxygen demand (BOD)5, chemical oxygen demand (COD), nitrate and phosphate were the chosen pollutants for evaluation. The pollutants removal effici...

This study explores the role of renewable energy (RE) penetration in Malaysia's energy security (ES) and its implications for the country's target of 20% capacity in the energy mix by 2025. Renewable energy (RE) is a critical driver of long-term energy security. In 2018, the share of renewable energy in Malaysia's energy mix was 9%, falling far sho...

The ever-growing human population has resulted in the expansion of agricultural activity; evident by the deforestation of rainfoamrests as a means of acquiring fertile land for crops. The crops and fruits produced by such means should be utilized completely; however, there are still losses and under-exploitation of these produces which has resulted...

Scaling up algal cultures to large volumes for commercial production is a challenging task that involves high capital and operating cost. Hence, the feasibility of a laboratory scale culture process is important to be tested, before expanding the production. This study aims to investigate the scaling up of Chlorella vulgaris, FSP-E cultivation by d...

Continuous automation of conventional industrial operations with smart technology have drawn significant attention. Firstly, the study investigates on optimizing the proportion of industrial biscuit processing waste powder, (B) substituted into BG-11 as a source of cultivation medium for the growth of C. vulgaris. Various percentages of industrial...

This study discusses the impact that the share of renewable energy (RE) in the energy mix for total primary energy supply and electricity generation has on Malaysia's short and long-term energy security (ES). Three key dimensions of the ES of Malaysia have been studied thoroughly from the existing body of work to extract the indicators and their ca...

Biodiesel is considered a suitable substitute and eco-friendly energy source. It is produced from renewable sources. Second-generation feedstocks are gaining attention due to their availability in many parts of the world. The non-edible biomass reduces food competition in the market. The Xanthium spinosum is one of the unexplored non-edible biomass...

Background With the advent of the 21st century, natural food products and functional food ingredients have been heavily marketed as additives to improve human health and well-being. Although the early iterations were chemically synthesized, more emphasis on natural raw materials for pharmaceutical products shifted the focus towards microorganisms s...

As one of Lianyungang's most famous specialties, Acanthogobius hasta is delicious and nutritious fish, but is extremely susceptible to spoilage during transportation and storage. In this study, Lactobacillus plantarum MMB-07 was isolated from traditional fermented sour fish to reduce losses and improve the utilization and food value of A. hasta. L....

The present study defines a novel green method for the synthesis of the nickel oxide nanocatalyst by using an aqueous latex extract of the Ficus elastic. The catalyst was examined for the conversion of novel Brachychiton populneus seed oil (BPSO) into biodiesel. The Brachychiton populneus seeds have a higher oil content (41wt%) and free fatty acid...

White Spot Syndrome Virus (WSSV) is a major cause of mortality in shrimp cultivation on farms all around the world. The serious monetary losses related with its occurrence in susceptible shrimps and the limitations of current methods used to treat WSSV disease in Vietnam, highlight the need for new methods to prevent and to manage the disease. The...

Microalgae are potential sustainable renewable sources of energy but are highly underutilized due to the expensive and time-consuming downstream processing. This study aims at curbing these obstacles by extracting multiple components with a single processing unit. In this work, an ultrasound-assisted liquid triphasic flotation system (U-LTF) was in...

The development of advanced and novel products for the biotechnology industry has recently been a point of focus, and thus research has been carried out to determine a technique for integration of the upstream process with product recovery. This integration step allows products to be in an acceptable state for formulation and delivery. The purpose...

This chapter focuses on a separation method for various bioactive components via flotation-assisted liquid biphasic systems (LBSs). Flotation-assisted LBSs are a combination of flotation and LBS to efficiently extract biomolecules with higher yield than the conventional aqueous two-phase systems. This chapter discusses the basic working principle a...

This work studied the potential of using eggshell (ES) (200–300 μm) waste as adsorbent for sequential removal of heavy metals, soluble microbial products, and dye wastes. In this study, among soluble microbial products, chicken egg white (CEW) proteins were selected as simulated contaminants. ES was applied to capture heavy metal ions (e.g., Cu²⁺ a...

Rise in human population and gradual decline in fossil fuels are increasing the demand for fuels and causing an upsurge in fuel prices and global warming. Concomitantly, consumers have raised their health awareness by taking various supplements, e.g. omega-3 fatty acids, thus calling for advanced nutraceuticals. Both issues are addressed by recent...

Phycocyanin (PC) is the main pigment found in Spirulina platensis and has the potential effect to treat effectively type-2 diabetes mellitus by inhibiting α-amylase and α-glucosidase. However, studies on molecular interactions between PC with α-amylase and α-glucosidase enzymes are still rare. In this study, an in-silico study was carried out to pr...

Spirulina platensis contain variety of pigments, such as chlorophylls, carotenoids, and phycocyanin. Phycocyanin (PC) exists in abundance, but due to its instability, the utilization of this pigment is still very limited. In this study, the PC was modified using formaldehyde crosslinks yielding phycocyanin-formaldehyde (PC-F), and its photostabilit...

Microalgae biomass has been consumed as animal feed, fish feed and in human diet due to its high nutritional value. In this experiment, microalgae specie of Chlorella Vulgaris FSP‐E was utilized for protein extraction via simple sugaring‐out assisted Liquid Biphasic Electric Flotation system (LBEF). The external electric force provided to the two‐p...

Microalgae has been consumed in human diet for thousands of years. It is an under-exploited crop for production of dietary foods. Microalgae cultivation does not compete with land and resources required for traditional crops and has a superior yield compared to terrestrial crops. Its high protein content has exhibited a huge potential to meet the d...

Microalgae biomass contains various useful bio-active components. Microalgae derived biodiesel has been researched for almost two decades. However, sole biodiesel extraction from microalgae is time-consuming and is not economically feasible due to competitive fossil fuel prices. Microalgae also contains proteins and carbohydrates in abundance. Micr...

Coagulation–flocculation has been proven as one of the effective processes in treating palm oil mill effluent (POME), which is a highly polluted wastewater generated from palm oil milling process. Two pairs of natural coagulant–flocculant were studied and evaluated: peanut–okra and wheat germ–okra. This research aims to optimize the operating param...

The ever-rising production of Palm Oil Mill Effluent (POME) has disabled the conventional treatment of aerobic and anaerobic ponding system to comply with the discharge limits set by Department of Environment (DOE), Malaysia. Addition of Coagulation-Flocculation process in POME treatment has proven to enhance the performance of the treated POME. Th...

As the production of Palm Oil Mill Effluent (POME) increasing every year, the conventional treatment by aerobic and anaerobic ponding system have started to fail to comply with the discharge limits set by Department of Environment (DOE), Malaysia. Addition of Coagulation-Flocculation process in POME treatment can enhance the performance of the trea...