Reactive Materials in the Removal of Phosphorus Compounds from Wastewater—A Review

Modern technologies designed to treat wastewater containing phosphorus compounds are based on the processes of adsorption and precipitation. In addition, more environmentally friendly and cheaper materials are being sought to ensure greater conformity with overarching assumptions of green chemistry and sustainable development. Against that background, this paper offers a review and analysis of available information on the considered reactive materials that have the capacity to remove phosphorus from wastewater. These materials are categorised as natural (with a sub-division in line with the dominant sorption groups of Al/Fe or Ca/Mg), waste, or man-made. Notably, most studies on sorbents have been carried out in laboratory systems via experimentation under static conditions. Among the natural materials, opoka has the highest sorption capacity of 181.20 g P/kg, while red mud (in the waste material category) is most efficient at binding phosphorus with a level of 345.02 g P/kg. Finally, among the group of commercial materials, Rockfos® has the highest sorption capacity of 256.40 g P/kg. In addition, this paper recognises the effect of composition, pH, and physical properties on a reactive material’s capacity to absorb phosphorus, as well as the possibility for further potential use in the production of fertilisers.

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Secondary Metabolites from Artemisia Genus as Biopesticides and Innovative Nano-Based Application Strategies

Molecules ◽

10.3390/molecules26103061 ◽

2021 ◽

Vol 26 (10) ◽

pp. 3061

Author(s):

Bianca Ivănescu ◽

Ana Flavia Burlec ◽

Florina Crivoi ◽

Crăița Roșu ◽

Andreia Corciovă

Keyword(s):

Secondary Metabolites ◽

Negative Impact ◽

Crop Protection ◽

Duration Of Action ◽

Worldwide Distribution ◽

Artemisia Species ◽

Extended Duration ◽

Reduced Toxicity ◽

Available Information ◽

Potential Use

The Artemisia genus includes a large number of species with worldwide distribution and diverse chemical composition. The secondary metabolites of Artemisia species have numerous applications in the health, cosmetics, and food sectors. Moreover, many compounds of this genus are known for their antimicrobial, insecticidal, parasiticidal, and phytotoxic properties, which recommend them as possible biological control agents against plant pests. This paper aims to evaluate the latest available information related to the pesticidal properties of Artemisia compounds and extracts and their potential use in crop protection. Another aspect discussed in this review is the use of nanotechnology as a valuable trend for obtaining pesticides. Nanoparticles, nanoemulsions, and nanocapsules represent a more efficient method of biopesticide delivery with increased stability and potency, reduced toxicity, and extended duration of action. Given the negative impact of synthetic pesticides on human health and on the environment, Artemisia-derived biopesticides and their nanoformulations emerge as promising ecofriendly alternatives to pest management.

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Metabolomic Study of Heterotrophically Grown Chlorella sp. Isolated from Wastewater in Northern Sweden

Molecules ◽

10.3390/molecules26092410 ◽

2021 ◽

Vol 26 (9) ◽

pp. 2410

Author(s):

Jean Claude Nzayisenga ◽

Anita Sellstedt

Keyword(s):

Sustainable Development ◽

Butyric Acid ◽

Lipid Production ◽

Growth Conditions ◽

Northern Sweden ◽

Metabolic Intermediate ◽

Chlorella Sp ◽

Lipid Contents ◽

New Compounds ◽

Potential Use

There are numerous strains of Chlorella with a corresponding variety of metabolic pathways. A strain we previously isolated from wastewater in northern Sweden can grow heterotrophically as well as autotrophically in light and has higher lipid contents under heterotrophic growth conditions. The aims of the present study were to characterize metabolic changes associated with the higher lipid contents in order to enhance our understanding of lipid production in microalgae and potentially identify new compounds with utility in sustainable development. Inter alia, the amino acids glutamine and lysine were 7-fold more abundant under heterotrophic conditions, the key metabolic intermediate alpha-ketoglutarate was more abundant under heterotrophic conditions with glucose, and maltose was more abundant under heterotrophic conditions with glycerol than under autotrophic conditions. The metabolite 3-hydroxy-butyric acid, the direct precursor of the biodegradable plastic PHB (poly-3-hydroxy-butyric acid), was also more abundant under heterotrophic conditions. Our metabolomic analysis has provided new insights into the alga’s lipid production pathways and identified metabolites with potential use in sustainable development, such as the production of renewable, biodegradable plastics, cosmetics, and nutraceuticals, with reduced pollution and improvements in both ecological and human health.

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Education for sustainable development in chemistry – challenges, possibilities and pedagogical models in Finland and elsewhere

Chemistry Education Research and Practice ◽

10.1039/c4rp00128a ◽

2014 ◽

Vol 15 (4) ◽

pp. 488-500 ◽

Cited By ~ 14

Author(s):

M. K. Juntunen ◽

M. K. Aksela

Keyword(s):

Sustainable Development ◽

Science Education ◽

Green Chemistry ◽

Chemistry Education ◽

Sustainability Science ◽

Education For Sustainable Development ◽

Chemistry Teachers ◽

Current State ◽

Pedagogical Models ◽

Pedagogical Frameworks

This article analyses Education for Sustainable Development (ESD) in chemistry by reviewing existing challenges and future possibilities on the levels of the teacher and the student. Pedagogical frameworks that are found eligible in practice are reviewed. Lesson themes that are suitable for implementing socio-scientific issues (SSI) related to ESD into basic chemistry education at schools are discussed. Based on this analysis, three new demonstrative pedagogical models for ESD in chemistry are presented to help guide the work of teachers. The models draw on an interdisciplinary reading of research in the field of SSI-based science education, sustainability science, green chemistry and environmental education. The current state of ESD in Finnish chemistry education is used as an example case throughout the article. Two tasks where future development is required were recognised. The first task concerns supporting chemistry teachers in overcoming the challenges with SSI and ESD they face in their work. The second task is to ensure that students are more often provided with more relevant and flexible chemistry content and studying methods.

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La chimica verde

PRISMA Economia - Società – Lavoro ◽

10.3280/pri2011-002006 ◽

2012 ◽

pp. 65-73

Author(s):

Roberto Ballini

Keyword(s):

Sustainable Development ◽

Green Chemistry ◽

Continuous Improvement ◽

Global Economy ◽

Standard Of Living ◽

Industrialized Countries ◽

New Paradigm ◽

The Usa

The late 20th and early 21st centuries have seen a phenomenal growth of the global economy and a continuous improvement of the standard of living in industrialized countries. Sustainable development has consequently become an ideal goal and, in the early 1990s, the concept of Green Chemistry was launched in the USA as a new paradigm.

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A Study of the Potential Use of Red Mud to Obtain Compositions Based on Portland Cement

KnE Materials Science ◽

10.18502/kms.v6i1.8128 ◽

2020 ◽

Author(s):

Ekaterina Gerasimova ◽

Elizaveta Gumirova

Keyword(s):

Portland Cement ◽

Red Mud ◽

Waste Product ◽

Cement Stone ◽

Mathematical Planning ◽

Alumina Production ◽

Mineral Additive ◽

Composition Properties ◽

Planning Of Experiments ◽

Potential Use

The paper deals with the problem of utilization of red mud which is a waste product from alumina production using the Bayer method. The principal possible use for the red mud of JSC “Bogoslovsky aluminum plant” (Sverdlovsk region) for the compositions based on Portland cement is shown. It was found that the mud introduction accelerates beginning of the cement paste setting and thickens the paste reducing its mobility. It is concluded that the introduction of red mud up to 30 % is justified in terms of strength indicators. The work is carried out using mathematical planning of experiments. Keywords: red mud, Portland cement, active mineral additive, composition, properties, bauxite, chemical composition, cement stone strength, mathematical planning of experiments

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PERSPECTIVE OF SUSTAINABLE DEVELOPMENT IN POST-PANDEMIC WORLD: SURVEILLANCE CAPITALISM AND HOPES

Society Register ◽

10.14746/sr.2020.4.2.12 ◽

2020 ◽

Vol 4 (2) ◽

pp. 159-166

Author(s):

ŁUKASZ RĄB ◽

KAROLINA KETTLER

Keyword(s):

Sustainable Development ◽

21St Century ◽

Social Relations ◽

Natural Environment ◽

Interesting Case ◽

Modus Operandi ◽

Working Models ◽

Healthcare Crisis ◽

Modern Technologies

The current coronavirus pandemic is not only a health/healthcare crisis but to a vast extent it will also influence other spheres of life, including social relations, the shape of economy and working models, and natural environment. Sustainable development that relies on the previously mentioned pillars (economy, society, environment) is going to be strongly affected by the virus outbreak. There is a threat that the process of recovering from the corona crisis will accelerate and legitimize the dynamics of surveillance capitalism. A really interesting case is going to be the labor world, where thanks to modern technologies, suppression of personal freedoms and triumph of total surveillance might be particularly easy. However, good scenarios are also plausible. The first 21st century pandemic of that scale may force societies to redefine their current modus operandi and shift capitalism into a more sustainable, humanistic model.

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