Green remediation of pharmaceutical wastes using biochar: a review

Macroscopic cyanobacterial biofilms were collected from alluvial plain soils and estuarine mangrove soils representing the Lower Gangetic Plains of South East Asia (India). The composition of the biofilms was investigated using light microscopy and field emission scanning electron microscopy of collected samples. In this study four simple trichal non-heterocytous morphotypes were found to be unique. Out of four, three morphotypes clearly showed differences with respect to described taxa as based on most recent taxonomic classification and possibly represent new report from the Indian subcontinent. One morphotype was successfully established under culture conditions and described as Leptolyngbya indica sp. nov. isolated from the alluvial arsenic affected rice field soil. This study provides vital information on morphotypic diversity of Cyanobacteria from specific biotopes which can contribute key information on their biogeography and potential application in green remediation.

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Green remediation of tailings from the mine using inorganic agents

Hemijska industrija ◽

10.2298/hemind160419026d ◽

2017 ◽

Vol 71 (2) ◽

pp. 155-165 ◽

Cited By ~ 1

Author(s):

Aleksandar Dosic ◽

Dragana Tomasevic-Pilipovic ◽

Miladin Gligoric ◽

Bozo Dalmacija ◽

Djurdja Kerkez ◽

...

Keyword(s):

Mine Tailings ◽

Treatment Process ◽

Mine Tailing ◽

High Metal Content ◽

Green Remediation ◽

High Metal ◽

Environmentally Sound ◽

Sound Management ◽

The Impact

Increasing amounts of residues and waste materials coming from industrial activities in different processes have become an increasingly urgent problem for the future. The paper presents the problem of mine tailings generated in mine ?Sase? (Republic of Srpska, Bosnia and Herzegovina) with high metal content (Pb, Cu and Zn). Dumpsite of this tailing represents potential risk for water bodies in the vicinity of this location. Chosen treatment process was stabilization/solidification (S/S). Inorganic agents used in this study were fly ash and red mud that represent secondary industrial waste generated on locations relatively near the mine. Therefore, their application can be used as an example of a sustainable solution of regional environmental problem. Further investigations are related to the impact of various factors on metals leaching from mine tailings solidified/stabilized material using the above mentioned immobilization agents. The performance of the immobilizing procedures was examined using several leaching tests: ANS 16.1, TCLP, DIN, MWLP. The results indicated that all S/S samples can be considered as non-hazardous waste, as all leached metal concentrations met the set criteria. These results will further enable the modelling of metals behaviour during long-term leaching from treated mine tailing. The data are invaluable in terms of economically and environmentally sound management of mine tailing.

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A review on green remediation techniques for hydrocarbons and heavy metals contaminated soil

Current Chemistry Letters ◽

10.5267/j.ccl.2021.9.006 ◽

2022 ◽

Vol 11 (1) ◽

pp. 43-62 ◽

Cited By ~ 1

Author(s):

Islam A. Abdelhafeez ◽

Sayed A. El-Tohamy ◽

Mokhtar A. Abd ul-Malik ◽

Shaban A. A. Abdel-Raheem ◽

Farida M.S. El-Dar

Keyword(s):

Heavy Metals ◽

Long Range ◽

Organic Pollutants ◽

Persistent Organic Pollutants ◽

Contaminated Soil ◽

Environmental Problems ◽

Long Range Transport ◽

Green Remediation ◽

Range Transport ◽

Physical And Chemical

Organic pollutants cause many environmental problems to our environment because of their toxicity, non-degradation and ability to long-range transport. The most common organic pollutants are known as persistent organic pollutants (POPs) and are known as hydrocarbons. Effective techniques for the removal of hydrocarbons and heavy metals from soil have drawn great attention. Remediation techniques represent one of the most important of these techniques because of their gentle impact on the environment. The study highlights numerous methods for Physical and chemical remediation techniques with explanation of the ability of some plants and agricultural wastes for remediation.

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