Articles

Review Article
Physical, Biological and Chemical Treatment of Distillery Spentwash: A Review

Molasses based alcohol distilleries in India are one of the most polluting industries; In addition, they are high consumers of raw water. Growing scarcity of high-quality freshwater as well as stringent regulatory standards is compelling these units to explore appropriate water management options. This report provides an overview of the water use and effluent treatment status in Indian distilleries and the challenges faced by sector. Practices adopted by progressive Indian distilleries to minimize freshwater use are illustrated through case studies. Further, the R and D focus pertaining to waste water treatment and disposal is also summarized.

Research Article
Investigation of Electrical Drop-Drop Coalescence of the Simulated Water Droplets Falling in Sunflower Oil

In many industries, dispersion of water droplets in oil or oil droplets in water is not desirable and they must be separated. Thus, Non-Uniform Electric field (NUE) is used as an ecological method for separating such a dispersed phase. In this paper, performance of water droplets in sunflower oil was investigated under NUE. Measurements were obtained utilizing a batch of cylindrical demulsifier under a high-voltage system. The cylinder was filled with sunflower oil. Top of this cylinder had a tiny hole allowing a needle to be inserted for introducing water drops by a syringe falling in oil to create drop–drop coalescence under NUE.

Research Article
Production of Melissa Officinalis (Lemon Balm) Extracts Applying Multiple Methods and Investigation of its Encapsulation Using Chitosan

In the present study, Melissa officinalis (lemon balm) extract production was investigated using various extraction methods including maceration, soxhlet, ultrasound-assisted, enzyme-assisted and microwave-assisted extraction. Effectiveness of the employed methods was deliberated through determining the total phenolic content, antioxidant activity and extraction efficiency of solids content. Accordingly, Melissa officinalis extract with total phenolic content of 311.94 mg gallic acid/g of plant, antioxidant activity of 36 mg DPPH/g of plant as well as solids extraction efficiency of 22.81% were resulted confirming a beneficial herbal medicine

Research Article
Fertilizer Absorption Efficiency δ15N -Labelled Applied To Maizecrop (Zea Mays) in Central Chile

Nitrogen stable isotopes (δ15N) help to understand the Nitrogen (N) uptake in different crop parts. This study investigates the contribution and distribution of N absorption within the different fractions/organs (leave, stem, root and grain) of the crop plant (Zea mays), and labelled N remaining into the soil...

Review Article
Review of Arsenic Contamination in the Shallow Groundwater of the Bengal Basin, Bangladesh

Arsenic is present in a variety of organic and inorganic forms in the atmosphere, soils, minerals, rocks, natural waters and organisms. The Holocene alluvial aquifers of the Bengal Basin have excess levels of dissolved arsenic, with most of the sediment being derived from Himalayan erosion...

Research Article
Esustainable Reverse Osmosis, Electrodialysis and Bipolar Membrane Electrodialysis Application For Cold-Rolling Wastewater Treatment in The Steel Industry

In this work, a combination zero liquid discharge of Reverse Osmosis (RO), Electro Dialysis (ED) and Bipolar Membrane Electro Dialysis (BMED) for salt recovery and acid/base production is proposed for the treatment of cold-rolling wastewater. In ED concentrating process, parameters such as the most suitable voltage drop, membrane...

Research Article
Assessment of new cation exchange resin for nickel (II) ion continuous removal from aquatic environment using fixed bed technique

Nickel removal on ion exchange resin using fixed bed technique has proven to be very efficient. However, limited studies focused on continuous removal in fixed bed reactor. The breakthrough time of the resin still not well understood. New strong acid cation exchange resin was investigated exper- imentally in this study for theremoval...

Research Article
Cationic Polyelectrolytes Application for Removal of the Novadim Progress and Decis Pesticide Formulations from Synthetic Emulsions

The separation efficacy of some synthetic cationic polyelectrolytes and chitosan for removal of the organophosphoric (Novadim Progress) and pyrethroid (Decis) pesticide formulations from model emulsions has been assessed. The synthetic cationic polyelectrolytes contain the same amount of N,N - dimethyl - 2 - hydroxypropyleneammonium...

Research Article
Experimental Work of the Flow Field around Drop Inlets in Roadway Drainage System during Rainfall Event

The study aims at investigatingthe flow field in a roadway surface drainage system around and nearby roadway inlets. The variation of the hydraulic efficiency of drop drainage inlet and the water depth distribution with the variation of governing parameters are also studied and analyzed. An exper- imental model with alength scale ratio of (1:13) is designed to simulate a roadway prototype for a reach of 75m length and 10m width....

Research Article
Ecological Consequences of COVID-19 Outbreak

The COVID-19 outbreak has urged the countries around the globe to adopt restrictive measures to control the outbreak. This includes using large quantities of chlorine that are several times higher than the recommended dose to control the outbreak. In this article, we reviewed the articles that have direct relation with chlorine and ecological...

Research Article
The Kraal River and Fish Ecological Status Fluctuation Based on the Cascade Dam Building

In China, the Karst water areas and the highest hydropower potential areas are overlapped, which mainly located at the Southwestern regions. In these areas, the Karst water areas have unique geologi- cal conditions and fragile environment and are largely affected by dam construction. The cutting-edge perspectives on Karst...

Review Article
Clean Drinking Water Global Scarcity: A Review

Clean drinking water is essential. Although 71% of the global population are considered to have access to safe drinking water, non-contaminated drinking water cannot be taken for granted; also bottled water and tap water in industrialized countries can be severely contaminated. This review paper summarizes the findings from...

Research Article
An Experimental Study on Droplet Impact on a Deep Liquid Pool: Impact Outcomes and Their Transition Boundaries Group

In this work, the impacting process of a falling droplet (water, decane and tetradecane) onto a deep liquid pool of the same fluid were conducted over a wide range of the Weber number between 0.1 and 800. Five impact outcomes, such as bounce, partial coalescence, coalescence, jet, and splash, were observed and their transition boundaries were clearly delineated. Partial coalescence was not caught in tetradecane because of its relatively high...

Research Article
Prediction of Runoff Change considering the Influences of Reservoir Group

In order to explore the influence of the construction of reservoir group in the upper reaches of the Minjiang River basin on the hydrological evolution of the basin. The trend, mutagenicity and cyclicality of runoff changes in the Minjiang River basin from 1950 to 2015 were analyzed by means of trend rate method, sliding T test, Mann-Kendall test...

Research Article
Valorisation of Moroccan Industrial and Municipal Wastes as Alternative Fuel : Determination of Heat Capacity

During the last years, Moroccan policy targets new technologies for the treatment and valorisation of municipal Wastes. Among them, incineration and pyrolysis. This is due to the fact that the landfilling is an extensive technology and the waste can be valued partly by production of biogaz....

Research Article
Changes of Soil Organic Carbon and Nitrogen Storage with Veg- etation Degradation in the Qinghai Lake Basin

At present, grassland degradation is a serious threat to the ecological environment of the Qinghai Lake Basin. Under the background of climate/environmental change, it is an important factor affecting carbon/nitrogen balance. Qinghai Lake Basin is a typical ecologically fragile area in Chi- na's alpine region, which is highly sensitive to...

Review Article
Nano Sensors Based on Lipid Films

This review provides information and details about the construction of nanosensors based on lipid membranes that can be utilized to monitor toxicants in food, environmental pollutants, and analytes of clinical interest. Nano sensors based on lipid films have been used to rapidly detect a wide range of these analytes, and can offer several advantages towards analytical instrumentation such as rapid response times, high sensitivity and selectivity...

Research Article
Valorisation of Moroccan Industrial and Municipal Wastes as Alternative Fuel : Determination of Heat Capacity

During the last years, Moroccan policy targets new technologies for the treatment and valorisation of municipal Wastes. Among them, incineration and pyrolysis. This is due to the fact that the landfilling is an extensive technology and the waste can be valued partly by production of biogaz....

Review Article
Quantifying Model Uncertainty to Improve Stream Flow Prediction forGeba Catchment,UppertekezeRiverBasin, Ethiopia

This study was conducted to predict stream flow at the outlet of the gauged Geba watershed and analyze the associated uncertainty that can affect its accurate prediction. Semi distributed HBV light model was applied to estimate stream flow of the Geba catchment and associated uncertainty through Monte Carlo Simulation procedure....

Research Article
Ecophysiologicals Responses of Olive Trees (Olea Europaea L.) Hybrid Varieties in Soil Amended with Olive Mill Waste Waters

This study aimed the using of olive mill wastewaters (OMW) in agriculture to reduce its ecological negative impact. The main objective is to study the effects of the application of OMW at a fixed dose (50 m3 ha-1) on the agronomic development and the eco-physiological responses of three olive trees (Olea europaea L.) ...

Research Article
Investigation on Kinetics and Equilibrium of the Adsorption of Ammonia Nitrogen on Activated Carbon Modified By Nitric Acid

The coconut activated carbon (AC) was modified by using nitric acid as the activator. Unmodified and modified AC samples were characterized in terms of structural, morphological, surface, and chemical properties. The oxygen functional groups of surface such as hydroxyl group and carboxyl group were obviously increased after modification. Ammonia nitrogen removals from the aqueous solution...

Review Article
Potential of Rainwater Harvesting for Non-Potable Uses in Jam-mu and Kashmir region- A Review

In North Western Himalayan region, most of the water received through torrential and high intensity rainfall, out of which mostly goes as a surface runoff. The paper reviews the present status and the future scope of rainwater harvesting especially with reference to the hilly mountain of Jammu and Kashmir. It inspects the rainfall climatology of the area...

Research Article
The Research of Artificial Radionuclides Speciation in Surface Water at the Semipalatinsk Test Site Territory

This research examined the speciation of artificial radionuclides in the surface waters at the Semipalatinsk test site territory. The speciation of 90Sr, 137Cs and 239+240Pu in the most polluted water bodies of the “Degelen”, “Experimental Field” and “Telkem” test sites are determined by cascade filtration...

Research Article
Large Specific Surface Area Nitrogen-Doped Biochar Cathode: A Tactics for Recycling Nitrogen and Phosphorus Enriched Aquatic Plant

In this study, a nitrogen-doped biochar oxygen reduction reaction(ORR) cathode(Alternanthera philoxeroidescarbon) was produced by two kinds of molten salts (ZnCl2 and Mg5(OH)2(CO3)4) carbonization without extra nitrogen source, which had an excellent performance in Electro-Fenton (E-Fenton) process. ...

Research Article
Improving Biogasfermentation of Sludge and Cosubstratesby Combining Acidification with Disintegration Systems

A semi-scale acidification batch reactor (700 litres) was installed at the domestic wastewater treatment plant Hof (Germany) and feed with thickened sludge and treated with electroporation and hydrodynamic induced cavitationwith exposure times up to 6 hours. Inoculation from the large-scale sludge digester improved acidification significantly.Investigations were carried out with sludge from the treatment...

Research Article
Climate Impact on Metal Dispersion in Urban Waters

consequence of climate change is increased frequency of extreme weather events, e.g., extreme temperatures, floods, cyclones, and heavy rainfall that may influence urban water quality. Additionally, ongoing worldwide urbanization processes and the growing number of mega-cities also pose challenges for safe drinking...

Short Communication
Quantitative Assessment Method and Application of HumanWater Harmony

Since the effect of human activityand climate change, water resources and environment are getting worse over the world. Human-watercontradiction and its associated ecological and environmental problems have become an important obstacle to sustainable development of human beings[1]....

Research Article
The Origin of Submerged-Soil-Based Rice Cultivation with an Emphasis on Archeological Evidences

Rice cultivation has long been considered to have originated from seeding of annual types of wild rice somewhere in subtropics, tropics or in the Yangtze River basin. That idea, however, contains a fatal weak point, when we consider the tremendous difficulty for primitive human to seed any cereal crop in the warm and humid climate, where weed thrives all year round. Instead of the accepted view, we have to...

Research Article
Phenol and Polyphenol Removals in Olive Mill Effluent with Nano-Zno-Magnetite Composite via Photo Catalysis

Olive mill wastewater (OMW) contains high concentration of organic matter, acidic pH values, suspended solids and high content of phenols and polyphenols which are toxic substances. The aim of this study is the removals of total phenol and two polyphenos namely tyro sol and hydroxytyrosol in the OMW...

Research Article
Anaerobic Removals of Polybrominated Diphenylether (PBDE), Hexabromocyclododecane (HBCD) and Tetrabromobisphenol A (TBBPA) in Hospital Wastewaters

The this study, the anaerobic degradation and sorption of 3 polybrominated micropollutants (polybrominated diphenylethers (PBDE), hexabromocyclododecane (HBCD) and tetrabromobisphenol A (TBBPA) was studied in UASB reactor at increasing SRTs. The optimum SRT for maximum total removals of TBBPA, HBCD and PBDE were 93%, 96% and 97% at a SRT of 35 days at 37oC. It was found that TBBPA...

Review Article
Alligator Grass (Alternanthera Philoxeroides), A Nuisance Aquatic Plant but a Potential Feedstock for Biofuels Production

Alligator grass (Alternanthera philoxeroides) is considered a nuisance aquatic plant. This biomass however has prolific growth and hence a potential feedstock for biofuels production. This biomass resource is considered an invasive species but will not compete with agricultural food or feed production. It can generate more than 7.85 tonnes of biomass per hectare (dry) and produces biomass continuously though out the year...

Research Article
Adsorption on Platinum Single Crystals:A Review

An ideal solution to the problem of dependence on natural raw materials can become such a simple and fairly common component as water. If the water be divided into components, then hydrogen can be used as a pure energy. As is known, some transition metals, such as Pt, are good catalysts for water....

Short Communication
Water Supply of the Population in the Conditions of Anthropogenic Eutrophony of Volga Reservoirs

The problem of providing the population with high-quality drinking water under the conditions of anthropogenic eutrophication of surface water bodies becomes more and more urgent every year [1]. This problem is particularly acute in the reservoirs of the Middle and Lower Volga, where in summer due to the massive development of blue-green algae (“blooming” of water) there is a sharp deterioration in water quality (phytoplankton....

Research Article
Adsorption of Dyes from Water on to Bamboo-Based Activated Carbon - Error Analysis Method for Accurate Isotherm Parameter Determination

The adsorption of Reactive Black 5 dye from aqueous solution been studied using four types of adsorbents, namely BACX6 (Bamboo Activated Carbon), BACX2, Filtrasorb F400 and bone char.It is important to determine the most accurate capacity parameters from isotherm studies in order determine the size of an adsorption water treatment process. The experimental results obtained showed that BAXC2 has....