Atul Upadhyay

Atul Upadhyay
Babasaheb Bhimrao Ambedkar University · Department of Environmental Science

PhD
microalgal consortia based enhanced biofuel production and waste management

About

49
Publications
14,213
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983
Citations
Additional affiliations
May 2019 - May 2022
Babasaheb Bhimrao Ambedkar University
Position
  • UGC-DSKPDF
May 2010 - present
CSIR-NBRI
Position
  • PhD Student

Publications

Publications (49)
Article
Full-text available
Ubiquitous distribution, fast growth rate and manifold relevance has credited algae a potential bioresource in current state of affairs of environmental degradation. In the present study, green alga Chlorococcum sp. has been collected from waste water, isolated and cultured to assess their accumulation and toxicity responses at different As(III) co...
Article
In the present investigation, the growth pattern, cellular modification, oxidative stress markers, and defense responses in Chlorella vulgaris and Scenedesmus vacuolatus were analyzed after treatment with municipal wastewater (25%–100%). The main aim was to compare the Chlorella vulgaris and Scenedesmus vacuolatus on account of remediation efficien...
Article
The present study was conducted to assess the strain aptness, phycoremediation potential and lipid yield in microalgae Chloroccocum humicola and Oscillatoria sp. Results revealed that microalgae treated with different concentration of wastewater (25%, 50%, 75% and 100%) recovered nutrients (Nitrogen: 50.55–85.90%, Phosphorus: 69.98–93.72%) and remo...
Article
Present study investigates metal accumulation potential, enzymatic and non-enzymatic tolerance responses of a tropical perennial plant Alternanthera dentata grown under multi metal (Cr, Cd, As and Ni) treatment at different concentration i.e. 0, 5, 20 and 50 ppm for 60 d in pot culture with garden soil as control. Results revealed accumulation of a...
Article
Full-text available
Background Pinus and other related conifers belonging to family pinaceae are most commonly used medicinal plants in Indian North-western Himalayas. Various parts of these plants including needles are source of several well known alkaloids. Of all the alkaloids, piperidine group is one of important component and hold considerable medicinal importanc...
Article
The present study was conducted to assess the efficiency of naturally growing competent microalgal consortia (Chlorella vulgaris, Chlorococcum humicola and Nannochloropsis sp.) in the waste remediation of sewage water and lipid production. Results showed that microalgal consortia during wastewater (WW) treatment efficiently utilized the inorganic n...
Chapter
Sustainable production of the renewable energy is being keenly debated globally since the first generation biofuels, mainly produced from food crops, and mostly oil seeds are limited in their aptitude to fulfill the demand of biofuel, climate change, and economic growth. These anxieties have developed the interest towards second generation biofuels...
Chapter
Synthesis of nanoparticles (NPs) through algae has been assumed a few significant roles in nano-based medications for human life improvement. Recently, there are few reports on the synthesis of NPs using algae, which are being utilized as a bio-processing plant for the blend against the microbes in various manners. Besides, NPs can be produced by p...
Book
This exciting book presents diverse applications of microalgal renewable resources to meet modern demands for energy and value-added products. It also comprehensively describes the role of algae in sustainable and cost-effective wastewater treatment strategies, and highlights the latest research on, advances in and biotechnological relevance of alg...
Chapter
Both biologically and economically, microalgae are vital for the proper functioning of the biosphere. Globally the scientific community is trying to tap the massive microalgae resource, which is able to grow in all ecological niches. Huge biodiversity and variable composition of microalgae can enhance the production of variable compounds and increa...
Article
Water pollution has grown to be a grave concern in the world. Direct discharge of wastewater poses risks to the aquatic ecosystems by causing eutrophication and degrades their physico-chemical characteristics. Moreover, wastewater is mainly enriched with recalcitrant toxic substances that pose detrimental impacts on the receiving environments. Conv...
Chapter
The advent of industrial revolution brings the problem of land, wastewater, and biodiversity. Constructed wetland, the mega reservoir of biodiversity are shrinking due to encroachment in search of food and shelter which indirectly enhances the requirement of energy, creating a panic situation of biodiversity as well as civilization lost in coming d...
Chapter
Full-text available
Phytoremediation is a green strategy of environmental decontamination and offers a cost-effective approach for the remediation of variety of pollutants. This is an emerging technology toward sustaining the future of the world and mankind. The phytoremediation technology has been successfully applied in developed and developing nations to achieve th...
Chapter
Full-text available
A wetland is a type of ecosystem saturated with water throughout the year possessing various ecosystem services in the environment. Wetland is composed of abiotic and biotic components and acts naturally as a reservoir of food, shelter, and habitat for biological communities. Increasing human population leads to more industrialization and urbanizat...
Article
Full-text available
Environmental interventions and ecological adaptations harbor millions of valued substances and metabolites in plants which can be employed and commercialized for human benefits. Present study encompasses the untapped potential of pine needles of Indo-Himalayan region for the production of different metabolites and their pharmacological significanc...
Book
The risks and consequences of environmental change are increasing, leading to massive losses in terms of ecosystems and having a huge impact on human populations. As such, global thinkers, environmentalists, scientists and policy makers are focusing on finding solutions and ways to sustain life on Earth. Anthropogenic impacts on the climate system...
Article
Full-text available
The present study was conducted to examine the photosynthetic performance, nutrient status and lipid yield in microalgae Chlorococcum humicola and Chlorella vulgaris under different durations of UV-B exposure (1/2 h, 1 h, 2 h, 3 h and 4 h). Results revealed that UV-B reduces the photosynthetic performance of photosystem II by altering photosyntheti...
Article
Full-text available
In the present study, arsenic tolerant bacteria were isolated and characterized from rhizospheric soil of rice plant growing in the arsenic contaminated area of West Bengal, India. Among 31 bacterial isolates, nine isolates were showed tolerance at higher concentration of arsenate (As V; 20000 mg mL-1). Selected arsenic tolerance bacterial isolates...
Chapter
Full-text available
Phycoremediation technology is a cost-effective and environment-friendly approach, which involves use of microalgae to suck the pollutant present in the soil and water. The accumulation of inorganic and organic pollutants like pesticides, herbicides, insecticide, PCBs, DDT, and metals along with metalloids (Cd, Pb, Se, As) in the aquatic ecosystem...
Chapter
Wastewater discharge with high biological oxygen demand (BOD) and high nutrient levels (e.g., nitrate, phosphate) affects water quality and is a major reason for degradation of water bodies, including rivers. In addition, metals and other toxic elements are also concentrated in aquatic bodies due to the continuous disposal of wastewater that is tre...
Chapter
Full-text available
Arsenic (As) is a toxic element which may contaminate water and soil either by geogenic and anthropogenic processes. High concentration of As in groundwater may affect human health through drinking water and contaminate soil through irrigation. High arsenic contents in the groundwater have been reported from various parts of the globe due to the ge...
Article
Full-text available
Constructed wetland (CW) is a low-energyconsuming technology that uses natural biogeochemical cycles to remove a wide variety of wastewaters including industrial effluents, urban and agricultural wastewaters, leachates, sludge, pharmaceutical waste and mine drainage. Constructed wetlands provide significant water quality improvements along with a n...
Article
In the present study, microalgae Chlorococcum humicola and Chlorella vulgaris were grown in different concentrations of NaCl (25-1000 mM) to elucidate its impact on morphology, lipid synthesis, minerals status and antioxidative responses. Scanning Electron microscopy showed distorted cell morphology and increased cell size by 33.52% (C. humicola) a...
Article
Full-text available
GABA counteracts wide range of stresses through regulation of GABA shunt pathway in plants. Although, GABA assisted tolerance against As toxicity in plants is still unexplored. We have examined GABA induced tolerance in rice seedlings with two exposure periods of GABA i.e., short term and long term. Results showed that accumulation of GABA reduced...
Article
The present study was conducted to examine the impact of selenium (Se) on mineral nutrient status and oxidative stress in crop plant Oryza sativa treated with arsenic (As). Scanning electron microscopy (SEM) coupled with Energy dispersive x-ray spectroscopy (EDS) study revealed the morphological deformities in leaf veins along with granular deposit...
Chapter
Full-text available
The algae play very important role in mobilizing elements in the aquatic environments and received more attention in recent years as they have ability to absorb and detoxify heavy metals (Ye et al. 2012). Synthesis of phytochelatins and metallothioneins by algae helps in forming complexes with heavy metals and their detoxification (Suresh and Ravis...
Article
Full-text available
A simulated horizontal flow constructed wetland (CW) has been designed with gravel medium and aquatic plants Typha latifolia and Polygonum hydropiper to assess its performance efficiency for sewage treatment. Monitoring of fully developed CW revealed a high removal of nutrients and metals from sewage after treatment at varying retention times. The...
Article
The present study was conducted to quantify the arsenic (As) and other heavy metal concentrations in the plants and algae growing naturally in As contaminated blocks of North-24-Pargana and Nandia district, West Bengal, India to assess their bioaccumulation potential. The plant species included five macrophytes and five algae were collected from th...
Article
Full-text available
The present study was conducted to quantify the arsenic (As) and other heavy metal concentrations in the plants and algae growing naturally in As contaminated blocks of North-24-Pargana and Nandia district, West Bengal, India to assess their bioaccumulation potential. The plant species included five macrophytes and five algae were collected from th...
Article
The present study was conducted to assess the responses of rice (Oryza sativa L. var. Triguna) by in-oculating alga; Chlorella vulgaris and Nannochlropsis sp. supplemented with As(III) (50 mM) under hy-droponics condition. Results showed that reduced growth variables and protein content in rice plant caused by As toxicity were restored in the algae...
Article
The rapid growth of water consumption within the urban area due to industrial development, an increase of the urban population, and an improvement of sanitary conditions is accompanied by the equally rapid increase of industrial and domestic wastes polluting all the components of the natural environment: the atmosphere, water bodies, soils and subs...
Article
Full-text available
Lichens are useful biological indicators of environmental contamination for a variety of metals and radionuclide of both natural and artificial origin. In present study, an active biomonitoring study was carried out with a commonly growing foliose species of Dirinaria applanata (Fée) D.D. Awasthi, collected from Pichavaram mangroves of Tamil Nadu....
Article
Full-text available
Potamogeton pectinatus L. and Potamogeton crispus L. were grown hydroponically in nutrient solution under Cu, Cr, Pb and Zn stress at 5 mg l −1 concentrations to evaluate their comparative tolerance and metal accumulation potential. Metal toxicity was evident from a decrease in chlorophyll content, increased malondialdehyde (MDA) and electrolyte le...
Article
Full-text available
h i g h l i g h t s Constructed wetland (CW) efficiently decreased up to 90% BOD from sewage in 24 h. P. australis, T. latifolia and C. esculenta (HGR) were main components of CW. CW efficiently removed nutrients and metals from sewage. a b s t r a c t With aim to develop an efficient and ecofriendly approach for on-site treatment of sewage, a sub-...
Article
Full-text available
An assessment of Ganga river water quality at different ghats of Haridwar, showed high TDS (782.15 mg L-1) and BOD (21.76 mg L-1) levels at the mixing points of sewage discharge channels and the water was found to be contaminated with appreciable amounts of toxic metals; Cu, Pb, Zn, Cr and Mn (0.178, 0.566, 0.199, 0.177 and 0.160 mg L-1). The Ganga...

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