scholarly journals Physicochemical Analysis of Effluents from Agro-Based Paper Mill in Uttarakhand State of India

2020 ◽  
Vol 13 (3) ◽  
pp. 174-180
Author(s):  
Uma Shankar Singh ◽  
Suresh Panwar ◽  
R.K. Jain ◽  
Y.C. Tripathi
Keyword(s):  
Physicochemical Parameters ◽  
Paper Mill ◽  
Physicochemical Characteristics ◽  
Physicochemical Analysis ◽  
Pulp And Paper ◽  
Proper Treatment ◽  
Paper Mills ◽  
Mean Values ◽  
The Mean ◽  
Pulp And Paper Industries

The pulp and paper industries discharge of large amount of effluent as wastewater in the surrounding streams thereby causing serious health and environmental problems. These large quantities of effluents need to be characterized for evolving proper treatment strategy prior to their disposal. Physicochemical characteristics of effluents from an agro-based paper mills located in Uttarakhand state of India were analyzed in terms of pH, colour, TS, TDS, TSS, turbidity, BOD, COD, and AOX. The effluent samples collected from different processing units of the paper mill varied considerably across the discharge streams. The mean values pH, colour, TS, TDS, TSS, turbidity, BOD, COD, and AOX were found in the range of 2.559.8±0.05, 4102802 PCU, 1980.652785.79 ppm, 1650.672470.35 ppm, 315.44 401.35 ppm, 73.22349.37 NTU, 170.32670.42, 705.522000.55 ppm, and 14.9840.82 respectively. Result shows that all the studied physicochemical parameters of effluents at different processing units of the mill are higher than the permissible standards that need proper treatment for their safe disposal.

scholarly journals CHARACTERIZATION OF SERBIAN SUNFLOWER HONEYS BY THEIR PHYSICOCHEMICAL CHARACTERISTICS

2021 ◽  
Author(s):  
Nenad Popov ◽  
Milica Živkov Baloš ◽  
Sandra Jakšić ◽  
Vladimir Polaček
Keyword(s):  
Electrical Conductivity ◽  
Water Content ◽  
Physicochemical Parameters ◽  
Mass Fraction ◽  
Physicochemical Characteristics ◽  
Total Acidity ◽  
Mean Values ◽  
Significant Difference ◽  
The Mean

Abstract: Five physicochemical parameters (water content, electrical conductivity, total acidity (pH), ash mass fraction and concentration of free acids) were analyzed in 15 sunflower honeys collected from several localities in Vojvodina, Republic of Serbia. The mean values of analyzed honeys were: water content 16.87%; concentration of free acids 27.43 mEq/kg; electrical conductivity 0.34 mS/cm; pH 3.64. The selected physicochemical characteristics of all honey samples from Serbia analyzed in this research can be considered to be within the parameters expected for sunflower honey in general. The values for ash mass fraction, electrical conductivity and concentration of free acids in all sunflower honey samples showed similar trends. High correlation was established between electrical conductivity and ash mass fraction. Statistically significant difference at p≤0.05 (p=0.017) was established only for average values of free acids concentration between honey samples originating from the localities Kanjiža and Čelarevo. All of the analyzed honeys were found to meet national and European legislation for all investigated parameters. Therefore, further research on physicochemical properties of sunflower honey is required to confirm the quality and authenticity of this product and for better understanding the benefits of this honey.

scholarly journals Characterization of Serbian sunflower honeys by their physicochemical characteristics

2021 ◽  
Vol 48 (1) ◽  
pp. 1-8
Author(s):  
Milica Živkov-Baloš ◽  
Sandra Jakšić ◽  
Nenad Popov ◽  
Vladimir Polaček
Keyword(s):  
Electrical Conductivity ◽  
Water Content ◽  
Physicochemical Parameters ◽  
Mass Fraction ◽  
Physicochemical Characteristics ◽  
Total Acidity ◽  
Mean Values ◽  
Significant Difference ◽  
The Mean

Five physicochemical parameters (water content, electrical conductivity, total acidity (pH), ash mass fraction and concentration of free acids) were analyzed in 15 sunflower honeys collected from several localities in Vojvodina, Serbia. The mean values of analyzed honeys were: water content 16.87%; concentration of free acids 27.43 mEq/kg; electrical conductivity 0.34 mS/cm; pH 3.64 and ash mass fraction 0.13%. The selected physicochemical characteristics of all honey samples from Serbia analyzed in this research can be considered to be within the parameters expected for sunflower honey in general. The values for ash mass fraction, electrical conductivity and concentration of free acids in all sunflower honey samples showed similar trends. High correlation was established between electrical conductivity and ash mass fraction. Statistically significant difference (p≤0.05) was established only for average values of free acids concentration between honey samples originating from the localities Kanjiža and Čelarevo. All of the analyzed honey samples were found to meet national and European legislation for investigated parameters

scholarly journals Neutralization of Acidic Wastewater from a Steel Plant by Using CaO-Containing Waste Materials from Pulp and Paper Industries

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2653
Author(s):  
Tova Jarnerud ◽  
Andrey V. Karasev ◽  
Pär G. Jönsson
Keyword(s):  
Fly Ash ◽  
Pulp And Paper ◽  
Waste Materials ◽  
Paper Mills ◽  
Steel Mills ◽  
Lime Mud ◽  
Set Up ◽  
Pulp And Paper Industries ◽  
The Given ◽  
Acidic Wastewater

In this study, CaO-containing wastes from pulp and paper industries such as fly ash (FA) and calcined lime mud (LM) were utilized to neutralize and purify acidic wastewaters from the pickling processes in steel mills. The investigations were conducted by laboratory scale trials using four different batches of wastewaters and additions of two types of CaO-containing waste materials. Primary lime (PL), which is usually used for the neutralization, was also tested in the same experimental set up in the sake of comparison. The results show that these secondary lime sources can effectively increase the pH of the acidic wastewaters as good as the commonly used primary lime. Therefore, these secondary lime sources could be potential candidates for application in neutralization processes of industrial acidic wastewater treatment. Moreover, concentrations of metals (such as Cr, Fe, Ni, Mo and Zn) can decrease dramatically after neutralization by using secondary lime. The LM has a purification effect from the given metals, similar to the PL. Application of fly ash and calcined lime mud as neutralizing agents can reduce the amount of waste from pulp and paper mills sent to landfill and decrease the need for nature lime materials in the steel industry.

scholarly journals Evaluation of Physicochemical Characteristics of Surface Water from Orashi River, Rivers State, Southern Nigeria

2021 ◽  
Vol 8 (2) ◽  
pp. 105-122
Author(s):  
Onisogen Simeon Edori ◽  
Enize Simeon Edori
Keyword(s):  
Suspended Solids ◽  
Oxygen Demand ◽  
Physicochemical Characteristics ◽  
Total Dissolved Solids ◽  
Standard Laboratory ◽  
Mean Values ◽  
Drinking Purposes ◽  
The Mean ◽  
One Year ◽  
Rivers State

Water samples were collected from four different stations bimonthly from the Orashi River for a period of one year. The samples were collected from the shores of selected communities along the Engenni axis of the river. The samples were treated and analyzed according to standard laboratory and analytical procedures for water physicochemical parameters. The parameters examined were pH, Salinity, chlorides (Cl-), Conductivity, total dissolved solids (TDS), total suspended solids (TSS) turbidity, temperature, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), nitrates (NO3-), sulphate (SO42-) and phosphates (PO43-). The results showed that the mean values of the evaluated parameters were; pH (6.91±0.11), salinity (9.79±0.27 mg/L), Cl (6.25±0.25 mg/L), conductivity (29.66±1.20 µS/cm), TDS (17.66±2.08 mg/L), TSS (16.83±1.15 mg/L), turbidity (11.84±1.50 mg/L), temperature (28.16±0.12 oC), DO (5.91±0.18 mg/L), BOD (7.30±0.60 mg/L), COD (9.41±0.70 mg/L), NO3- (3.42±0.27 mg/L), SO42- (1.15±0.56 mg/L) and PO43- (15.65±5.76 mg/L). The results of the different parameters showed that all of them fall within the WHO acceptable limit except turbidity, DO and BOD that were not within the recommended range, then COD and phosphates that were either within or above the recommended values at different instances. Based on the findings of this work, the water may not be particularly suitable for drinking purposes, but can be used for other household functions that do not require consumption and also for irrigation. Keywords: water, physicochemical property, human activity, environment, contamination

scholarly journals Thermal characterization of hydrated eco-friendly clinkers produced from pulp and paper mill waste

Cerâmica ◽  
2018 ◽  
Vol 64 (371) ◽  
pp. 311-317 ◽  
Author(s):  
L. Simão ◽  
N. J. Lóh ◽  
D. Hotza ◽  
F. Raupp-Pereira ◽  
J. A. Labrincha ◽  
...  
Keyword(s):  
Thermal Characterization ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Industrial Wastes ◽  
Pulp And Paper Mill ◽  
Paper Mills ◽  
Bet Analysis ◽  
Alternative Materials ◽  
Clinker Production

Abstract Industrial wastes from pulp and paper mills are potentially useful materials to use as alternative materials in clinker production. In this study, eco-friendly clinkers were obtained using only waste as feedstock. Eco-friendly clinker with different C3S and C2S contents were produced and hydrated for 7 days at 40 °C, or for 28 and 90 days at room temperature. The potentialities of these waste and the products obtained were revealed through chemical (XRF), thermal (DTA/TG) and surface area (BET) analysis. For comparison, a common ordinary Portland cement (OPC) was tested. As expected, the hydration rate of formulations presenting higher C3S content was higher, generating higher amounts of Ca(OH)2. Furthermore, the amount of Portlandite formed was lower when compared to OPC.

scholarly journals Comparison Study of Manometric Respirometric Test and Common Chemical Methods in the Determination ofBOD7in a Pulp and Paper Mill's Wastewaters

2006 ◽  
Vol 2006 ◽  
pp. 1-5 ◽  
Author(s):  
Katri Roppola ◽  
Toivo Kuokkanen ◽  
Hannu Nurmesniemi ◽  
Jaakko Rämö ◽  
Risto Pöykiö ◽  
...  
Keyword(s):  
Wastewater Treatment Plants ◽  
Oxygen Demand ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Comparison Study ◽  
Short Term ◽  
Chemical Methods ◽  
Paper Mills ◽  
The Difference

The biological oxygen demand (BOD) test is widely used in many wastewater treatment plants. The conventional BOD tests are usually time-consuming and the results are often out of date for process control purposes. The aim of this research was to compare the manometric respirometric test with common chemical methods in the determination of BOD of wastewater from a pulp and paper mills as well as to evaluate theBOD7values of both wastewaters from the short-term respirometric measurements. The results showed that there were differences in theBOD7values of paper mill samples measured by conventional and respirometric methods. The main cause was found to be the dilution solution used in the conventional BOD tests. Using the same mineral solution in the respirometric measurements diminished the difference remarkably. Evaluation of theBOD7value after two or three days incubation was proved to work very well and the estimated results were close to measured values (deviations 1%–12%).

scholarly journals Changes in selected physicochemical parameters of breast muscles of geese from Polish conservation flocks depending on duration of the post slaughter period

2008 ◽  
Vol 51 (3) ◽  
pp. 255-265 ◽  
Author(s):  
A. Okruszek ◽  
J. Książkiewicz ◽  
J. Wołoszyn ◽  
G. Haraf ◽  
A. Orkusz ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Physicochemical Parameters ◽  
Ph Value ◽  
The Other ◽  
Mean Values ◽  
Qualitative Traits ◽  
Ph Values ◽  
Colour Parameters ◽  
The Mean

Abstract. In four Polish conservative flocks of Suwałki (Su), Kartuzy (Ka), Kielce (Ki) and Subcarpathian (Sb) geese, registered by FAO as domestic genetic resources the mean values of qualitative traits of breast muscles (pH15', pH30', pH45', pH24h; colour parameters: L*15', L*30', L*45', L24h, a*15', a*30', a*45', a*24h, b*15', b*30', b*45', b*24h and conductivity: EC45', EC3h, EC24h) were determined. The experimental flocks showed significant variations in the investigated parameters. The Kartuzy goose breast muscles were characterized by higher values of pH15' (6.74), pH30' (6.62), pH45' (6.56) and b*15' parameter (0.80) in comparison with the remaining flocks. Moreover, these muscles had the lowest pH24h (5.65) and values of L* parameter (L*15', L*30', L*45' and L*24h) and EC45' (3.23 mS/cm). The pH value and L* and a* parameters (except L*24h and a*24h) of the analysed flocks were decreasing, and conductivity increasing together with the time post slaughter, and the rate of changes depended on the birds’ origin. Greater differences between pH values, measured 15 min and 24 h after slaughter were stated in breast muscles from Ka (1.09) and Su (0.90) geese than from the other two flocks investigated (Ki – 0.74; Sb – 0.58). The highest increase in conductivity (from EC45' to EC24h) was affirmed in Ka and Ki muscles (3.84 mS/cm) and the lowest in breast muscles of Sb geese (2.72 mS/cm).

scholarly journals Physicochemical Characteristics and Heavy Metals Contents in Soils and Cassava Plants from Farmlands within Nnamdi Azikiwe University, Awka, Anambra State

2021 ◽  
pp. 37-43
Author(s):  
N. P. Udeh ◽  
A. C. Ikegwuonu ◽  
O. A. Okeke ◽  
C. Obudulu ◽  
K. P. Okafor ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Physicochemical Characteristics ◽  
Mean Value ◽  
Soil Samples ◽  
Metal Enrichment ◽  
Metal Concentrations ◽  
Mean Values ◽  
Metal Levels ◽  
The Mean

Soil samples and cassava tubers collected from farmlands within Nnamdi Azikiwe University, Awka vicinity were analyzed for their heavy metal levels using Atomic Absorption Spectrophotometer (AAS) in order to assess their levels of contamination on the environment as a result of excessive fertilizers and automobile emission. Physiochemical properties of the soil samples were determined using standard methods. The soil pH had a mean value of 6.27 ± 0.07, 6.10 ± 0.06 and 6.57 ± 0.03 respectively indicating that the soils were slightly acidic to neutrality. Total organic carbon and nitrate mean values were 105.20 ± 6.20, 95.75 ± 9.57 and 94.6 ± 2.27 and 138.07 ± 12.09, 149.35 ± 14.25 and 149.20 ± 1.17 respectively showing presence of some organic matters. The mean levels of heavy metals in the soil samples were 0.01 ± 0.01, 0.05 ± 0.03 and 0.05 ± 0.03 for lead (Pb), 0.24 ± 0.16, 0.001 ± 0.001 and 0.001 ± 0.000 for cadmium (Cd) and 0.00 ± 0.00, 0.010 ± 0.006 and 0.001 ± 0.001 for chromium (Cr). These metals levels were in the abundance trend of Pb>Cd> Cr. The mean metal concentrations obtained in the cassava tubers respectively were 0.001 ± 0.001, 0.001 ± 0.001 and 0.005 ± 0.005 for lead (Pb), 0.000 ± 0.000, 0.0003 ± 0.0003 and 0.000 ± 0.000 for cadmium (Cd) and 0.002 ± 0.002, 0.000 ± 0.000 and 0.002 ± 0.002 for chromium (Cr). These metals levels were in the abundance trend of Pb> Cr > Cd. For both the soil and cassava samples, there were no significant variations in the heavy metal concentrations and also in physicochemical parameter except for pH; this showed that there is low heavy metal enrichment in the soils studied. Based on the study, the following heavy metals (Pb, Cd, and Cr) falls within the Codex maximum permissible limits 0.1mg/l or ppm expect soil cadmium in science village which is above the Codex limit. The overall results showed that the farmlands (on soils and cassava tuber) appear to be free from poisoning or some metal enrichment and safe for agricultural purposes and also safe for human health and consumption.

scholarly journals Synthetic Organic Compounds From Paper Industry Wastes: Integrated Biotechnological Interventions

2021 ◽  
Vol 8 ◽  
Author(s):  
Shweta Jaiswal ◽  
Guddu Kumar Gupta ◽  
Kusum Panchal ◽  
Mandeep ◽  
Pratyoosh Shukla
Keyword(s):  
Organic Compounds ◽  
Paper Industry ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Waste Discharge ◽  
Synthetic Organic Compounds ◽  
Paper Mill Waste ◽  
Paper And Pulp ◽  
Pulp And Paper Industries ◽  
Benzene Compounds

Synthetic organic compounds (SOCs) are reported as xenobiotics compounds contaminating the environment from various sources including waste from the pulp and paper industries: Since the demand and production of paper is growing increasingly, the release of paper and pulp industrial waste consisting of SOCs is also increasing the SOCs’ pollution in natural reservoirs to create environmental pollution. In pulp and paper industries, the SOCs viz. phenol compounds, furans, dioxins, benzene compounds etc. are produced during bleaching phase of pulp treatment and they are principal components of industrial discharge. This review gives an overview of various biotechnological interventions for paper mill waste effluent management and elimination strategies. Further, the review also gives the insight overview of various ways to restrict SOCs release in natural reservoirs, its limitations and integrated approaches for SOCs bioremediation using engineered microbial approaches. Furthermore, it gives a brief overview of the sustainable remediation of SOCs via genetically modified biological agents, including bioengineering system innovation at industry level before waste discharge.

Trends in pulp and paper mill emissions of SO2 and NOx, 1980-2010

TAPPI Journal ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 9-14 ◽  
Author(s):  
JOHN E. PINKERTON
Keyword(s):  
Paper Mill ◽  
Pulp And Paper ◽  
Nox Emissions ◽  
Oxides Of Nitrogen ◽  
Pulp And Paper Mill ◽  
So2 Emissions ◽  
Paper Mills ◽  
The Past ◽  
Pulp Paper ◽  
Nox Control

Sulfur dioxide (SO2) and oxides of nitrogen (NOx) emissions from U.S. pulp and paper mills have been estimated from industry-wide surveys conducted every five years, beginning in 1980 and continuing through 2010. Between 1980 and 2010, total SO2 emissions declined by over 70%, while paper and paperboard production rose 35%. NOx emissions peaked in 1995, but fell by almost 40% over the next 15 years. Paper and paperboard production only declined 7% over the same period. These downward emission trends resulted from several factors, including reductions in oil and coal use, declining oil and coal sulfur content, increased use of add-on SO2 and NOx control systems on boilers, growing use of combustion modification techniques to minimize emissions, improvements in energy efficiency, and declining pulp, paper, and paperboard production over the past 15 years.

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