Studying human health in areas with industrial contamination is a serious and complex issue. In recent years, attention has increasingly focused on the implications of large complexes. A variety potential toxic chemicals have been produced during manufacturing processes activities complexes South Korea. number dyeing industries gathered together Daegu complex. The residents near could be often exposed to volatile organic compounds. This study aimed evaluate VOCs levels ambient air DDIC,...

The disposal of fly ash (FA) from coal power plants polluting the air, soil, and groundwater is a major environmental concern. Phytoremediation to rehabilitate dumpsites promising alternative but has practical concerns about harvested biomass. This study investigated effect supplementing with fresh sewage sludge (FSS), aged sludge, food waste, compost (COM) enhance phytoremediation potential Napier grass its subsequent utilization for ethanol production. highest removal Mn (1196.12 g ha−1)...

This study investigated the presence, distribution, and bioaccumulation of microplastics in surface water Coptodon rendalli at six sites Dikgatlhong Dam, Botswana: S1 (Tati River Inflow), S2 Midway), S3 (Confluence), S4 (Boundary Wall), S5 (Shashe S6 Inflow). All samples were taken a single day to ensure consistency. To digest organic materials, processed with wet peroxide oxidation method, whereas fish tissues pre-treated 10% potassium hydroxide (KOH) before going through same procedure...

Abstract The role of arbuscular mycorrhizal fungus (AMF) on biotransformation arsenic (As) in the rhizosphere sunflower (Helianthus annuus L.) was studied a rhizobag system with As-contaminated soil. treatments consisted combination two levels AMF (Glomus aggregatum) inoculation (–AM and +AM) under sterile non-sterile soil conditions (S NS). Each treatment designated as –AM/S, –AM/NS, +AM/S +AM/NS. Sunflower seedlings were cultured for 6 weeks. Rates root colonization +AM approximately 40%...

The effects of steam sterilization (SS), methyl bromide (MeBr) fumigation and chloropicrin (CP) on soil N dynamics microbial properties were evaluated in a pot experiment. All disinfection treatments increased the NH+ 4-N level inhibited nitrification. additional CP treatment probably originated from decomposition debris by surviving microbes, while that SS was attributable to deamination processes organic occurring less labile fraction addition debris. MeBr without changing biomass. Based...

The potential of Morupule fly ash as a soil amendment was evaluated using spinach and rape vegetables planted successively in Palapye soils added with 0 (FA), 5% FA, 10% 15% FA (w/w) combination four nutrient sources no fertilizer (-NF), compost (+COMP) at 20 tones ha−1, inorganic NPK (+NPK) 12 (+NPK+COMP). Spinach grown first for 40 days followed by second crop on the same pots treatments after harvesting spinach. application increased pH, EC, total concentration As, Cu, Pb while Zn....

A pot culture experiment was conducted to investigate the effects of amorphous iron-(hydr)oxide (Am-FeOH) amendments on arsenic (As) availability and its uptake by rice (Oryza sativa L. cv. BR28) irrigated with As-contaminated water. rhizobag system established using 3.5 L plastic pots, each containing one central compartment for plant growth, a middle an outside compartment. Three levels laboratory-synthesized Am-FeOH (0, 0.1 0.5% w/w) were used amend samples As-free sandy loam paddy soil...

A pot culture experiment was conducted using a Cu-spiked soil to compare the effects of application ethylenediamine-N,N′-tetraacetate (EDTA) and [S,S]-ethylenediamine-N,N′-disuccinate (EDDS), biodegradable chelating agent, on Cu distribution, uptake by brown mustard metabolic activity microorganisms for substrate utilization. Seedlings were planted in pots fitted with hollow fibers solution suction, cultivated 12 weeks. Solutions agents pH 6.0 at concentration 1.0 mmol kg−1 supplied 35, 43,...

Background/Objective: Vetiver grass (Vetiveria zizanioides (L.) Nash. Syn. Chrysopogon Roberty; family Poaceae) is well-known for producing essential oil that commonly used in premier perfumery, food, and pharmaceutical industries. The quality of produced should be assessed before application production various products. Methods/Results: In this study, the yield extracted from vetiver found Botswana was after cultivation mine tailings. respective influence chelating agents microbes such as...

Environment-friendly growth enhancers for rice are being promoted to reverse the negative impact of intensive chemical-based and conventional farming on yield sustainability environmental problems. Several rhizosphere microorganisms pyroligneous acids (PA) had demonstrated beneficial influence growth, grain quality rice. Since most previous study evaluated effect PGPR PA paddy singly, combined application these some soil chemical properties were determined. A four factorial pot experiment...

Environmental and health concerns due to fly ash dumpsite could be prevented by phytostabilization using non-food crops that will prevent pollutants' migration provide additional economic returns. The growth yield of Cymbopogon citratus in the were evaluated a pot experiment for three-ratoon period. Application compost, mycorrhiza, NPK fertilizer, singly or combination compost + mycorrhiza fertilizer had increased dry matter total essential oil content compared control. fertilization...

Abstract Mining activities introduce countless contaminants into the environment, including toxic levels of heavy metals that accumulate in soil and water, requiring environmental management to prevent detrimental effects. One strategy is use plants because their natural ability adsorb different tissues. To develop a rhizofiltration technique for mine wastewater Botswana, there need identify suitable aquatic plant species which can remove from acid drainage associated sediments. Plant...

Mishandling and disposal of post-harvested phytoremediation biomass results in secondary pollution. Biochar production is one the available technologies for processing biomasses. The main objective this study was to assess potential adsorption PO43- NO3- ions from a binary solution by ZnCl2-activated biochars. biochars were activated using ZnCl2 analyzed specific surface area, pore size, volume, morphology, point zero charges (pHpzc), functional groups, elemental composition. Subsequently,...