|
Solid Waste Characterization and Treatment Technologies in Rural Areas: An Indian and International Review(Environmental Technology and Innovation )
(Akash Patwa Divyesh Parde Ritesh Vijay Rakesh Kumar,,,,Year : 2020)
|
Solid waste generation and treatment become one of the main concerns for the rural area. This article reviews the solid waste composition and various solid waste treatment technologies in the rural areas of India and other countries. The solid waste generated in a rural area containing more than 50% of organic waste and rest inorganic. Waste generation rate is 0.3-0.9 kg/capita/day in various rural areas of different countries. Agriculture waste and animal waste are the major components of the organic fraction. Because of the organic nature of waste, composting is the most feasible technology of treating solid waste in the rural area. The review article also focused on various factors which may affect the process of composting and helpful for selecting composting technology as moisture content, C/N ratio, turning frequency, particle size, aeration rate, and temperature. Optimum values of these parameters are found that the optimum moisture content is (45%?60%), suitable temperature (45?70 ?C), turning frequency (7?15 days/turning) and C/N ratio (25?30). This paper also contains various treatment technologies for the organic solid waste which are based on composting and anaerobic digestion.
|
|
|
Understanding COVID?19 transmission, health impacts
and mitigation: timely social distancing is the key
(Environment, Development and Sustainability)
(Satinder Kaur
Hemant Bherwani
Sunil Gulia
Ritesh Vijay
Rakesh Kumar
,,,,Year : 2020)
|
|
No information is available
|
|
|
Geospatial analysis of groundwater quality in Patna Urban area. (Journal of Indian Water Works Association)
(Vijaya Laxmi,
Saurabh Sakhare
Ritesh Vijay
,Vol(2),Issue(2) Pages(104-110),,,Year : )
|
|
No information is available
|
|
|
Separation of WPCBs by dissolution of brominated epoxy resins using DMSO and NMP: A comparative study (Chemical Engineering Journal)(18th International Conference on Research and Industrial Practices exclusive on Non-ferrous Minerals and Metals (ICNFMM 2014))
(M.N. Katariya,,280,391 398,Year : 2015)
|
|
No information is available
|
|
|
Zooplankton diversity as indicators of pollution in warm monomictic Dal(Sustainable Water Resources Management)
(Dilip Meshram, D Catherine, N. Badhe, Snehal Khedkar, Ritesh Vijay Tapas Nandy ,Vol(4) Issue (4) Pages(897?904),,,Year : 2018)
|
|
The study aimed to assess the zooplankton diversity in Dal?Nigeen lake located in Srinagar, India. Zooplankton is a secondary producer which acts as the intermediate link between phytoplankton and fish in aquatic environment. Zooplankton diversity in the lake was monitored during autumn 2012 and summer 2013. Among zooplankton single species belonging to protozoa, 11 species to rotifera, 3 species to cladocera, and 2 species with single larval stage belonging to copepod were identified. Percent composition of zooplankton communities revealed that rotifera was the most dominant group followed by copepoda in summer, while rotifera was the most dominant group followed by cladocera in autumn season. The Shannon?Wiener diversity index (SWI) in summer varied from 1.29 to 3.63 and from 1.43 to 3.67 in autumn indicating moderate-to-good level of zooplankton diversity in the lake and low-to-medium impact of organic pollution from the anthropogenic activities. The study indicates that species abundance was lower in summer as compared to autumn season which may be due thereby to variation in environmental characteristics of the lake water.
|
|
|
Impact of sewage discharges on coastal water quality Mumbai, India: present and future scenarios(Environment Monitoring and Assessment)
(Ritesh Vijay, Trupti Mardikar , Rakesh Kumar ,Vol(188) Issue(7) Pages(420),,,Year : 2016)
|
|
The simulation study assesses the impact of sewage discharges on the present and predicted water quality of the Mumbai coast using MIKE 21. Water quality parameters in terms of dissolved oxygen (DO), biochemical oxygen demand (BOD) and faecal coliform (FC) are checked against specified standards. The simulation is validated for the present coastal hydrodynamics and observed water quality parameters. The validated model is further used for predicting scenarios in terms of upgradation in a pumping station and improvement in wastewater collection, treatment level and disposal systems. The water quality of the existing coastal environment does not conform to the stipulated standards but improves considerably in the prediction scenarios. However, despite a marked improvement in FC, it is not as per desired standards as no treatment for bacteria removal is considered. The simulation study emphasizes the need for exploring options like the reuse or recycle of treated effluent, as an effort for water conservation.
|
|
|
Flow visualization of pollutant mixing in freshwater body near the density maximum(Hydrology: Current Research, proceedings of 3rd International Conference on Hydrology & Meteorology)
(Tapas Nandy,
Malay Goel,
Ankit Gupta and
Ritesh Vijay,
,Vol(5),Issue(4),Pages(86),,,Year : 2014)
|
|
No information is available
|
|
|
GIS based solid waste management information system for Nagpur city, India(Journal of Environmental Science and Engineering)
(Ritesh Vijay, Preeti Jain, Nitu Sharma, J. K. Bhattacharya, A. N. Vaidya and R. A. Sohony,Vol(55),Issue(1),Pages(114-119),,,Year : )
|
|
No information is available
|
|
|
TCLP studies for characterization of hazardous solid waste from pickling and electroplating industries and design aspects of secured land fill disposal, (Research Abstracts)(Journal of Indian Water Works Association)
(Ritesh Vijay,,,,Year : 1999)
|
|
No information is available
|
|
|
Zooplankton diversity as indicators of pollution in warm monomictic Dal(Sustainable Water Resources Management)
(Dilip Meshram, D Catherine, N. Badhe, Snehal Khedkar, Ritesh Vijay Tapas Nandy ,Vol(4) Issue (4) Pages(897?904),,,Year : 2018)
|
|
The study aimed to assess the zooplankton diversity in Dal?Nigeen lake located in Srinagar, India. Zooplankton is a secondary producer which acts as the intermediate link between phytoplankton and fish in aquatic environment. Zooplankton diversity in the lake was monitored during autumn 2012 and summer 2013. Among zooplankton single species belonging to protozoa, 11 species to rotifera, 3 species to cladocera, and 2 species with single larval stage belonging to copepod were identified. Percent composition of zooplankton communities revealed that rotifera was the most dominant group followed by copepoda in summer, while rotifera was the most dominant group followed by cladocera in autumn season. The Shannon?Wiener diversity index (SWI) in summer varied from 1.29 to 3.63 and from 1.43 to 3.67 in autumn indicating moderate-to-good level of zooplankton diversity in the lake and low-to-medium impact of organic pollution from the anthropogenic activities. The study indicates that species abundance was lower in summer as compared to autumn season which may be due thereby to variation in environmental characteristics of the lake water.
|
|
|
Zooplankton diversity as indicators of pollution in warm monomictic Dal(Sustainable Water Resources Management)
(Dilip Meshram, D Catherine, N. Badhe, Snehal Khedkar, Ritesh Vijay Tapas Nandy ,Vol(4) Issue (4) Pages(897?904),,,Year : 2018)
|
|
The study aimed to assess the zooplankton diversity in Dal?Nigeen lake located in Srinagar, India. Zooplankton is a secondary producer which acts as the intermediate link between phytoplankton and fish in aquatic environment. Zooplankton diversity in the lake was monitored during autumn 2012 and summer 2013. Among zooplankton single species belonging to protozoa, 11 species to rotifera, 3 species to cladocera, and 2 species with single larval stage belonging to copepod were identified. Percent composition of zooplankton communities revealed that rotifera was the most dominant group followed by copepoda in summer, while rotifera was the most dominant group followed by cladocera in autumn season. The Shannon?Wiener diversity index (SWI) in summer varied from 1.29 to 3.63 and from 1.43 to 3.67 in autumn indicating moderate-to-good level of zooplankton diversity in the lake and low-to-medium impact of organic pollution from the anthropogenic activities. The study indicates that species abundance was lower in summer as compared to autumn season which may be due thereby to variation in environmental characteristics of the lake water.
|
|
|
Feasibility of bioengineered two-stages sequential batch reactor and filtration(Bioresource Technology)
(Pravin Manekar, Rima Biswas, Chaitali Urewar, Sukdeb Pal, Tapas Nandy,Vol(148) Pages(334-342),,,Year : 2013)
|
|
In the present study, the feasibility of a bioengineered two-stages sequential batch reactor (BTSSBR) followed by filtration?adsorption process was investigated to treat the agrochemical effluent by overcoming factor affecting process stability such as microbial imbalance and substrate sensitivity. An air stripper stripped 90% of toxic ammonia, and combined with other streams for bio-oxidation and filtration?adsorption. The BTSSBR system achieved bio-oxidation at 6 days hydraulic retention time by fending off microbial imbalance and substrate sensitivity. The maximum reduction in COD and BOD by heterotrophic bacteria in the first reactor was 87% and 90%, respectively. Removal of toxic ammoniacal-nitrogen by autotrophic bacteria in a post-second stage bio-oxidation was 97%. The optimum filtration and adsorption of pollutants were achieved at a filtration rate of 10 and 9 m3 m?2 h?1, respectively. The treatment scheme comprising air stripper, BTSSBR and filtration?adsorption process showed a great promise for treating the agrochemical effluent.
|
|
|
Water conservation through implementation of ultrafiltration and reverse osmosis system with recourse to recycling of effluent in textile industry(Resources, Conservation and Recycling)
(Tapas Nandy, Pravin Manekar, Rita Dhodapkar, Girish Pophali, Sukumar Devotta,Vol(51) Issue(1) Pages(64-77),,,Year : 2007)
|
|
In compliance with the protection of the drinking water source in one of the state capital of India, a cluster of small scale textile industries implemented membrane processes based on treatability studies for recovery of boiler feed water quality with recourse to effluent recycling/reuse. The paper addresses to a case study in one of the textile units on upgradation of a full scale effluent treatment plant comprising chemical, biological, tertiary and advanced treatment processes. Based on the adequacy assessment of chemical and biological processes, improvement in the performance of the unit processes were achieved through optimization of coagulant dosage for chemical coagulation and build-up of active biomass in the activated sludge system. In addition, application of membrane separation processes comprising ultrafiltration and reverse osmosis units are also highlighted including disposal of reverse osmosis (RO) rejects through evaporator leading to zero liquid effluent discharge. The treatment scheme implemented resulted in conservation of around 55% of fresh water demand for industry.
|
|
Feasibility Studies on Recycling/Reuse of Wastewater from Automobile Industry
(Shuchi Tayal, Anoop Verma, Pravin Manekar,,,,Year : 2011)
|
The wastewater from automobile industry consists of high organic, inorganic matter with oil and grease and heavy metals. If partially treated or untreated wastewater is discharged to damage the geo-environment. Sustainable growth in automobile industry warrants water conservation. The effluents recycle/reuse provides a novel opportunity to augment the increasing demand and enhance the idea of closing the water cycle (Takashi Asano, 2002). Water reclamation refers to the capture, treatment, and recycling/reuse of wastewater, typically for non-potable purposes. Implementation of wastewater reclamation, recycling/reuse need to be promoted for preservation of limited water resources. The automobile industry is therefore, a prime member for the recycle/reuse of treated wastewater. Recycled water satisfies more water demands in automobile industry, as long as it is adequately treated. The issues like water quality criteria, techno-economic analysis are essential components for water reuse. The treatment technologies engaged for treating the automobile effluent are dissolved air floatation (DAF) (Reed et. al. 1998), oil & water separator and chemical treatment, where coagulant like alum, ferrous sulphate and calcium chlorite and coagulant aid PAC are added (Mazumder and Mukherjee; 2011). The biological treatment includes biological filter, sequencing batch reactor (SBR), anaerobic sequencing batch biofilm reactor (Oliveira et al; 2007) and constructed wetlands (Ca?izares et al. 2008). In advance treatment system such as ultrafiltration (UF) (Zhao et al. 2006) is used for water recovery.
|
|
|
Closing water loop in a paper mill section for water conservation and reuse(Desalination)
(Manikavasagam Karthik, Rita Dhodapkar, Pravin Manekar, Pawan Aswale, Tapas Nandy,Vol(281),Pages(172-178),,,Year : 2011)
|
|
Water is critical to paper production and increasing competition from other users has reduced water availability to paper mills in recent years. The study was conducted at a large-scale integrated pulp and paper industry. The study conducted at laboratory for recycling of effluents was aimed at reducing water foot print of the paper mill. Paper machine section effluent was identified for treatment and reuse based on the flow and characteristics. Chemical aided clarification and simple membrane filtration systems were used for water recovery. Closing the water loop through suitable treatment for reuse of wastewater in the paper mills provides an assured and continuous source of water. Pollutant reductions at the rate of 87.5%, 75% and 89% were obtained on SS, COD and turbidity, respectively.
|
|
|
Sustainable Governance of Groundwater as Drinking Water in the Post Covid-19 World: An Urban Water Security Perspective(Legacy, Pathogenic and Emerging Contaminants in the Environment)
(Sukdeb Pal Subham Mukherjee, Pradip Kumar Sikdar,Volume(1),,,Year : 2021)
|
|
No information is available
|
|
|
Utilization of layered double hydroxides (LDHs) and their derivatives as photocatalysts for degradation of organic pollutants(Environmental Science Pollution Research)
(Sukdeb Pa Prakash Bobde, Ravi Kumar Patel, Deepak Panchal, Abhishek Sharma, Amit Kumar Sharma, Rita S. Dhodapkar,,,,Year : 2021)
|
|
Direct or indirect discharge of wastes containing organic pollutants have contributed to the environmental pollution globally. Decontamination of highly polluted natural resources such as water using an effective treatment is a great challenge for public health and environmental protection. Photodegradation of organic pollutants using efficient photocatalyst has attracted extensive interest due to their stability, effectiveness towards degradation efficiency, energy, and cost efficiency. Among various photocatalysts, layered double hydroxides (LDHs) and their derivatives have shown great potential towards photodegradation of organic pollutants. Herein, we review the mechanism, key factors, and performance of LDHs and their derivatives for the photodegradation of organic pollutants.
|
|
|
Novel photocatalytic techniques of Organic dye degradation in water(Photocatalytic Degradation of Dyes)
(Sukdeb Pal Deepak Panchal, Abhishek Sharma,Vol(1),Pages(808),,,Year : 2021)
|
|
Around 11 million tons of water is polluted per year and dye stuff industries contribute ?20% of the total industrial water pollution. Dyes are the recalcitrant pollutants in water because of their complex aromatic structure, high molecular weight, stability, degradation resistance, carcinogenic and mutagenic nature, and tendency to screen sunlight inhibiting photosynthetic reactions. Adsorption and filtration (reverse osmosis using membranes) have always been considered as efficient and economic dye removal methods that can be effortlessly scaled-up in wastewater treatment plants. However, due to high stability and recalcitrant nature of organic dyes these general treatment methods often suffer from low level of efficiency. Given these complexities, in past few decades photocatalytic degradation has grabbed much attention for organic dye removal reflecting its ability for complete mineralization.
|
|
|
Photo-Induced Synthesis of Coral-Like Hierarchical Ag(Chemistry of Materials)
(Deepak Panchal, Sukdeb Pal,Vol(33),Issue(16),Pages(6501-6513),,,Year : 2021)
|
|
Herein, we report, for the first time, rapid and facile photo-induced synthesis of hierarchical Ag?Fe bimetallic nanostructures with tailorable morphologies based on variation of Fe2+ concentrations at the submillimolar level. The synthesis methodology relies on the photo-oscillation of the Fe(II)?Fe(III)?Fe(II) system in the aqueous medium, leading to reduction of Ag+ to Ag0 nanoparticles ,wherein Ag0 nanoparticles are stabilized in an Fe-oxide framework. The morphology of the product is tailored from scattered to prominent coral-like nanostructures by simply varying the Fe2+ concentrations at the submillimolar level. The developed method eliminates the essential need of presynthesized precursor metal nanoparticles, toxic templates or surfactants, organic solvents, and sophisticated instrumentations or stringent reaction conditions.
|
|
|
Potential of Agro-Products in the Green Synthesis of Nano-Metallopharmaceuticals(Nanotechnology in Sustainable Agriculture)
(Deepak Panchal, Rita S Dhodapkar, Sukdeb Pal,Pages(117-138),,,Year : 2021)
|
|
Recent advancements in nanotechnology have received more attention due to their safer and effective pharmacology and medicinal applications. Compared to traditional drugs, nano-metallopharmaceuticals offer a better-targeted approach to minimize off-target effects and, thus, undesirable side effects. Despite many potential applications, growing concerns have been expressed for their safe production to reduce antagonistic human health effects. The production of metallopharmaceuticals can be grouped into three classes ? chemical, physical, and biological. However, reactants often used in chemical procedures are toxic, and their remnants, if they exist in nanomedicine, can induce systemic toxicity. Similarly, physical methods are expensive, with high power consumption, and they require a large space.
|
