scholarly journals Effect of Paper Mill Effluent on Lipid Profile of Freshwater Snake Headed Fish, Channa punctatus (Bloch, 1793)

2021 ◽  
Vol 11 (2) ◽  
pp. 3430-3440

Industrial effluents reaching the aquatic ecosystem through various routes like run-off, leaching, and direct discharge from factories are major causes of environmental pollution. These were reported to have a negative metabolic impact on different non-target aquatic organisms. Fish is a close inhabitant of the aquatic environment, serves as a useful model for assessing the effect of chemicals mixed in the aquatic environment. Channa punctatus Bloch (Actinopterygii: Channidae), one of the most common edible fish, if exposed to industrial effluents containing harmful substances, maybe a serious threat to human health. In the present study, an attempt was made to understand the effect of sublethal concentrations of paper mill effluent on lipid profiles of Channa punctatus after exposure to 96 hours. A significant increase was observed in total serum lipid, cholesterol, and phospholipid with decreased triglyceride levels. A significant increase was observed in the cholesterol and triglycerides levels, whereas total lipids and phospholipid levels showed a marked decline in the liver. Thus present study concludes that the estimation of the lipids profile of fish will certainly detect early signs of stress physiology concerning their habitat.

2000 ◽  
Vol 1523 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Iqbal Ahmad ◽  
Tariq Hamid ◽  
Masroor Fatima ◽  
Hitendra S Chand ◽  
Swatantra K Jain ◽  
...  

2021 ◽  
Vol 14 (4) ◽  
pp. 1764-1770
Author(s):  
Rajesh Paul

Aquatic ecosystem has been reported to be the universal sufferer of pollution caused by direct exposure of industrial discharges which causes severe genotoxic damages to aquatic flora and fauna. Researchers have found that fish have been extensively harmed by such exposure compared to other aquatic fauna. As living organisms directly depend on fish as a food resource, hence the study of mutagenicity induced have been extensively important not only for safety of aquatic organisms but also for safety of other living organisms too. Micronucleus (MN) assay has been continuously used in the evaluation of DNA damage. Mutagenic and genotoxic studies employed this methodology to evaluate possible carcinogenic risk due to exposure to harmful xenobiotics in including aquatic organisms. The aim of this study was to monitor the level of genotoxicity induced in fishes due to exposure to local paper mill effluent by using micronucleus assay as a biomarker. Fish were exposed to different concentrations of PME as 10%, 25% and 50%. Variation of body weight, survivality rate and percentage of micronucleated PCEs were analyzed. One-way anova was performed and data were expressed as Mean± S.E. Consecutive dose dependent and time dependent increase of toxicity was recorded in PME compared to negative and positive control (Mitomycin C). Our study supported the carcinogenic and chromosomal damage induced in aquatic organisms specially in fishes due to direct exposure of industrial discharges; also, the importance of MN test as an effective indicator for testing genotoxicity in fishes was confirmed.


BioResources ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. 5845-5861
Author(s):  
Natalino Perovano Filho ◽  
Ismarley Lage Horta Morais ◽  
Lívia Carneiro Fidélis Silva ◽  
Claudio Mudadu Silva ◽  
João Carlos Teixeira Dias ◽  
...  

Aerobic granules are large, compact microbial aggregates when compared to flocculent sludge, and they can be used in wastewater treatment. The application of aerobic granular sludge in bioreactors for the treatment of industrial effluents is still considered innovative and has been the subject of several recent studies. In the present study, 19 microbial isolates from mesophilic aerobic granules, obtained from a previous study, were evaluated in co-aggregation tests. The extracellular polymeric substances (EPS) produced, such as carbohydrates, proteins, and humic acids, were determined. The aim was to evaluate the relationship between the amount of EPS produced and the contribution of each isolate in the granulation process. The results of EPS production were used to analyze the polysaccharide / protein (PS / PN) ratio. The consortia with an absence of isolates 4, 8, 11, 14, 19, and 25 presented a PS / PN ratio <0.5. These isolates, identified as belonging to the genera Staphylococcus, Agrobacterium, Enterobacter, and Rhodococcus, were considered effective for the production and stability of the mesophilic aerobic granules.


2019 ◽  
pp. 69-76
Author(s):  
Tito N. Habib ◽  
Mohamed F. El-Sayed ◽  
Fathi M. Ali ◽  
Tawfiq M. Almsatar

The presence of sodium Lauryl sulfates (SLS) as synthetic detergents, in marine environment arises mainly from its presence in complex domestic and industrial effluents as well as its release directly from some applications (e.g., oil dispersants and pesticides). It has been reported that SLS is toxic and affects survival of aquatic animals such as fishes, microbes like yeasts and bacteria. It is also toxic to mammals like mice and humans but to a lesser extent. Many studies have shown that the direct discharge of untreated wastewater into aquatic environment containing anionic surfactants causes significant damage to the aquatic environment due to the growth of algae that consume oxygen needed for the life of aquatic organisms. These damages in the aquatic environment are caused not only by the presence of anionic surfactants (SLS), but also by their interaction with other pollutants in the aquatic environment, which increases their toxic effect on aquatic organisms. Such detergents, however, became a public nuisance because they were neither soluble nor biodegradable. The present study intended to evaluate the fate of SLS as synthetic detergents on Tripoli coastal site of Libya, and quantifying their impacts on fish (Sardine aurita) DNA mutation, compared with other species through literature review. Our results provide functional evidence for genome toxicity of fish, of the DNA mutation caused by detergents effluents. This study provides the rationale for a simple genetic test to identify the impacts of detergents on aquatic ecosystem of Libyan coastal region.


2009 ◽  
Vol 4 (2) ◽  
pp. 3 ◽  
Author(s):  
M.K. MALIK ◽  
PARMESH KUMAR ◽  
REENU SETH ◽  
S. RISHI

1994 ◽  
Vol 29 (10-11) ◽  
pp. 217-222 ◽  
Author(s):  
J. M. Rovel ◽  
J. P. Trudel ◽  
P. Lavallée ◽  
I. Schroeter

The results achieved on industrial effluents from four different paper mills, ranging from highly diluted effluents from units for the production of fine papers using bleached cellulose, to much more concentrated effluents from an integrated pulp and paper plant, show the potential and advantages of the Biofor process. Implemented as a complement to or replacement for activated sludge systems, the BioforR process, which dispenses with the clarification step and offers excellent resistance to sudden load and flow rate variations, is particularly well suited to the needs of this industry. This explains the rapid success already achieved in Europe and expected soon in North America.


TAPPI Journal ◽  
2009 ◽  
Vol 8 (3) ◽  
pp. 14-20 ◽  
Author(s):  
YUAN-SHING PERNG ◽  
EUGENE I-CHEN WANG ◽  
SHIH-TSUNG YU ◽  
AN-YI CHANG

Trends toward closure of white water recirculation loops in papermaking often lead to a need for system modifications. We conducted a pilot-scale study using pulsed electrocoagulation technology to treat the effluent of an old corrugated containerboard (OCC)-based paper mill in order to evaluate its treatment performance. The operating variables were a current density of 0–240 A/m2, a hydraulic retention time (HRT) of 8–16 min, and a coagulant (anionic polyacrylamide) dosage of 0–22 mg/L. Water quality indicators investigated were electrical con-ductivity, suspended solids (SS), chemical oxygen demand (COD), and true color. The results were encouraging. Under the operating conditions without coagulant addition, the highest removals for conductivity, SS, COD, and true color were 39.8%, 85.7%, 70.5%, and 97.1%, respectively (with an HRT of 16 min). The use of a coagulant enhanced the removal of both conductivity and COD. With an optimal dosage of 20 mg/L and a shortened HRT of 10 min, the highest removal achieved for the four water quality indicators were 37.7%, 88.7%, 74.2%, and 91.7%, respectively. The water qualities thus attained should be adequate to allow reuse of a substantial portion of the treated effluent as process water makeup in papermaking.


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