scholarly journals INVESTIGATION OF INFLUENCE OF LAPES LANDFILL LEACHATE ON GROUND AND SURFACE WATER POLLUTION WITH HEAVY METALS/LAPIŲ SĄVARTYNO FILTRATO ĮTAKOS APLINKOS PAVIRŠINIŲ IR POŽEMINIŲ VANDENŲ UŽTERŠTUMUI SUNKIAISIAIS METALAIS TYRIMAI/ ИССЛЕДОВАНИЕ ЗАГРЯЗНЕНИЯ ПОВЕРХНОСТНЫХ И ПОДЗЕМНЫХ ВОД ТЯЖЕЛЫМИ МЕТАЛЛАМИ ИЗ ФИЛЬТРАТА СВАЛКИ В ЛАПЕС

Author(s):  
Bronius Jaskelevičius ◽  
Vaida Lynikienė

As a result of global and intense production the waste disposal problems become more and more urgent. Waste processing, utilization and recycling is to a certain extent limited by many economic, organisational and technological factors, and this inevitably encourages waste disposal in landfills. Physical, chemical and biological interactions in landfill cell result in formation of landfill gas and harmful leachate. Because of lack of control, together with usual communal waste, industrial waste was also dumped to landfills, therefore gas and leachate produced include large amounts of toxic compounds. Once hazardous waste materials occured in landfills, later they vastly expanded the whole spectrum of toxic materials and compounds. In the landfill environment chemical properties of surface and ground water and concentration of separate components are governed by seepage of leachate and industrial solutants into soil and ground layers and their transport by subsurface waters. Influence on the environment exerted by heavy metals contained in the leachate of Lapes Landfill is discussed in this paper. Properties of industrial waste material influenced order of the main pollutants: the most important elements in this case are Cu, Ni, Zn, Pb, Mn, Cr and other ions, the sulphides of these metals and other toxic compounds. The First Landfill field is more polluted with heavy metal polutants than the Third field. In all the samples iron concentration is the greatest exceeding even 200 times the admissible value allowed (Norm HN 24:2003). Sources (springs) S11 and S17 are least contaminated with heavy metals. The greatest groundwater pollution was found in monitoring bore G13s. The leachate processed in purification devices is released to the Third stream. Heavy metal concentrations in waters of this stream are low and they further decrease downstream because the pollutants are diluted. Santrauka Masiškai gaminant produkciją, ją vartojant, vis opesnė tampa atliekų problema. Atliekų perdirbimą, utilizavimą iš dalies ribojantys ekonominiai, organizaciniai bei technologiniai veiksniai neišvengiamai skatina atliekas šalinti į sąvartynus. Dėl sąvartyno tūryje vykstančių fizinių, cheminių bei biologinių reakcijų susidaro sąvartyno dujos ir kenksmingas filtratas. Kadangi dėl nepakankamos kontrolės į sąvartynus kartu su buitinėmis, komunalinėmis atliekomis buvo šalinamos pramonės atliekos, susidarančiose dujose bei filtrate yra daug toksiškų junginių. Šią toksinių medžiagų bei junginių įvairovę dar labiau papildo į sąvartynus patenkančios pavojingos atliekos. Gruntinio ir paviršinio upelių vandens cheminę sudėtį ir kai kurių komponentų koncentraciją sąvartyno aplinkoje lemia filtrato ir pramoninių tirpalų įsisunkimo į gruntą mastas bei požeminių tėkmių pernašos. Straipsnyje nagrinėjama Lapių sąvartyno filtrate aptiktų sunkiųjų metalų įtaka aplinkai. Pramonės atliekos lėmė, kad filtrato pagrindiniai teršiantieji elementai yra Cu, Ni, Zn, Pb, Mn, Cr ir kt. jonai, šių metalų sulfidai ir kiti toksiniai junginiai. Pirmasis kaupimosi laukas yra labiau užterštas sunkiaisiais metalais nei trečiasis laukas. Visuose mėginiuose didžiausia yra geležies koncentracija. Ji net iki 200 kartų viršija HN 24:2003 leidžiamąją normą. Mažiausiai sunkiaisiais metalais užteršti šaltiniai (S11 ir S17 postai). Požeminis vanduo labiausiai užterštas G13s gręžinyje. Iš valymo įrenginių išvalytas filtratas yra išleidžiamas į upelį. Šio upelio vandenyje rastų sunkiųjų metalų koncentracijos yra nedidelės, o upeliui tekant tolyn teršalai atskiedžiami, ir metalų koncentracijos mažėja. Резюме Массовое производство продукции, пользование ею все более обостряют проблему отходов. Процессы переработки и утилизации отходов, в определенной степени ограничивающие экономические, организационные и технологические факторы, неизбежно способствуют интенсификации удаления отходов на свалки. На свалках отходов в результате протекающих физических, химических и биологических реакций образуются газы и токсичный фильтрат. Поскольку из-за недостаточного контроля на свалку вместе с бытовыми, коммунальными отходами удалялись и промышленные отходы, в составе образующихся газов и фильтрата имеется много токсичных соединений. Опасные отходы еще более увеличили спектр токсичных материалов и соединений в газах и фильтрате свалки. Химический состав и концентрация отдельных компонентов грунтовых и поверхностных вод в районе свалки определяют проникновение фильтрата и промышленных растворов в грунт и их перенос подземными течениями. В статье изучается влияние тяжелых металлов из фильтрата свалки в Лапес на состояние вод в районе свалки. Промышленные отходы способствовали появлению в фильтрате ионов основных загрязняющих элементов Cu, Ni, Zn, Pb, Mn, Cr, сульфидов этих металлов и других токсичных соединений. Первое поле накопления отходов в большей степени загрязнено тяжелыми металлами, чем третье поле. Во всех опытных образцах воды отмечена самая большая концентрация ионов железа, почти в 200 раз превышающая допустимую норму HN 24:2003. Наименьшее загрязнение тяжелыми металлами отмечено в подземной воде источников (посты S11 и S17). Грунтовые воды больше всего загрязнены в скважине G13s. Поверхностные воды ручьев, в которые проникает фильтрат, а также сливается очищенный фильтрат, содержат небольшие концентрации тяжелых металлов, которые разбавляются течением и уменьшаются.

2021 ◽  
Vol 11 (15) ◽  
pp. 7099
Author(s):  
Inkyeong Moon ◽  
Honghyun Kim ◽  
Sangjo Jeong ◽  
Hyungjin Choi ◽  
Jungtae Park ◽  
...  

In this study, the geochemical properties of heavy metal-contaminated soils from a Korean military shooting range were analyzed. The chemical behavior of heavy metals was determined by analyzing the soil pH, heavy metal concentration, mineral composition, and Pb isotopes. In total, 24 soil samples were collected from a Korean military shooting range. The soil samples consist of quartz, albite, microcline, muscovite/illite, kaolinite, chlorite, and calcite. Lead minerals, such as hydrocerussite and anglesite, which are indicative of a transformation into secondary mineral phases, were not observed. All soils were strongly contaminated with Pb with minor concentrations of Cu, Ni, Cd, and Zn. Arsenic was rarely detected. The obtained results are indicated that the soils from the shooting range are contaminated with heavy metals and have evidences of different degree of anthropogenic Pb sources. This study is crucial for the evaluation of heavy metal-contaminated soils in shooting ranges and their environmental effect as well as for the establishment of management strategies for the mitigation of environmental risks.


Author(s):  
Babatunde Oladipo ◽  
Aramide M. Akintunde ◽  
Sheriff O. Ajala ◽  
Samuel O. Olatunji ◽  
Olayomi A. Falowo ◽  
...  

Author(s):  
Diana FLORESCU ◽  
Andreea IORDACHE ◽  
Claudia SANDRU ◽  
Elena HORJ ◽  
Roxana IONETE ◽  
...  

As a result of accidental spills or leaks, industrial wastes may enter in soil and in streams. Some of the contaminants may not be completely removed by treatment processes; therefore, they could become a problem for these sources. The use of synthetic products (e.g. pesticides, paints, batteries, industrial waste, and land application of industrial or domestic sludge) can result in heavy metal contamination of soils.


2018 ◽  
Vol 6 (22) ◽  
Author(s):  
Maria Clara Tavares Astolfi ◽  
Elen Bethleen de Souza Carvalho ◽  
Adriane Menezes de Barros ◽  
Marcelo Valente Pinto ◽  
Luna Barrôco de Lacerda ◽  
...  

ABSTRACT Here, we report the draft genome of the Enterobacter cloacae strain amazonensis, a bacterium highly resistant to mercury that was isolated from a metal- and sewage-contaminated stream in Amazonas, Brazil. The exploration of the 5.0-Mb genome revealed 104 genes encoding resistance to toxic compounds and heavy metals, highlighting the potential biotechnological applications of this strain.


2019 ◽  
Vol 24 ◽  
pp. 32-34
Author(s):  
Siddhartha Shakya ◽  
Prekshya Gurung ◽  
Anjal Bohaju ◽  
Dipson Ojha ◽  
Bhim Prasad Kafle

Recent population growth, industrialization and unplanned urbanization have led to an increase in untreated waste disposal directly to the river system, including heavy metals. The present investigation was conducted for assessment of heavy metals in the Kavre valley river basin system. Through this basin, two major rivers Punyamata and Roshi along with their tributaries, flow passing through cities (Banepa, Shree Khandapur and Panauti) and the heavy metals selected were Iron (Fe), Chromium (Cr), Manganese (Mn), Lead (Pb), Zinc (Zn) and Cadmium (Cd). Seven sites were selected on the basis of city size and meeting point of tributaries. Fe, Cr and Mn were examined using UV-spectrophotometry whereas Pb, Zn and Cd were determined using AAS. The highest concentration of Cr, Mn, Fe, Cd, Zn, Pb were determined to be 1.9 μg/L, 22.6 μg/L, 514 μg/L, 340 μg/L, 20 μg/L, 80 μg/L, respectively, with Fe, Cd and Pb exceeding the WHO limits.


2018 ◽  
Vol 70 (4) ◽  
pp. 707-716
Author(s):  
Olivera Stajkovic-Srbinovic ◽  
Aneta Buntic ◽  
Natasa Rasulic ◽  
Djordje Kuzmanovic ◽  
Zoran Dinic ◽  
...  

Soil chemical properties and total heavy metal concentrations (As, Cd, Cr, Cu, Ni, Pb, Zn, Fe and Mn) and their relationships with some soil microbiological characteristics (such as soil respiration and numbers of specific groups of microorganisms) were evaluated in agricultural soils in southern Serbia. In 42% of samples, slightly elevated concentrations of As, Ni and/or Pb were detected, with the highest values of 43.4, 64.4 and 184.1 mg/kg, respectively. No significant differences were observed in soil microbiological characteristics between soil samples with elevated heavy metals and heavy metals below the maximum allowed concentrations (MAC). There was no negative correlation between any of the heavy metals and any microbiological characteristics, except the total number of fungi and the concentration of Ni (r=-394). Positive correlations between most of the heavy metals and the number of Azotobacter were obtained. Correlation analysis and stepwise multiple regression analyses indicated that the chemical properties of the soil are the factors that affected the number of microorganisms the most. The content of CaCO3 significantly contributed to variations in soil respiration (39%), the total number of microorganisms was affected the most by humus (53%), oligonitrophiles by the total N content (49%), while the numbers of actinomycetes and fungi were affected by the pH (48% and 58% of the variation).


2021 ◽  
Author(s):  
Michel Rodrigo Zambrano Passarini ◽  
Júlia Ronzella Ottoni ◽  
Paulo Emílio Santos Costa ◽  
Denise Cavalvante Hissa ◽  
Raul Maia Falcão ◽  
...  

Abstract The inappropriate disposal of toxic compounds generated by industrial activity has been impacting to the environment considerably. Microbial communities inhabiting contaminated sites may represent interesting ecological alternatives for the decontamination of environments. The present work aimed to investigate the fungal diversity inhabiting sediments from industrial waste containing heavy metals by using metagenomic approach. A total of twelve fungal orders were retrieved from datasets and, at phylum level, Ascomycota was the most abundant, followed by Basidiomycota, Chytridiomycota and Blastocladiomycota. Higher abundance of sequences was encountered within the less contaminated site, while the lower abundance was found in the sample with the higher contamination with lead. Gene sequences related to DNA repair and heavy metals biosorption processes were found in the four samples analyzed. The genera Aspergillus and Chaetomium, and Saccharomycetales order were highly present within all samples, showing their potential to be used for bioremediation studies. The present work demonstrated the importance of using the metagenomic approach to understand the dynamics of fungal communities and their behavior under heavy metal contamination, aiming the use in bioremediation processes of environments contaminated with heavy metals.


2018 ◽  
Vol 13 (3) ◽  
pp. 360-373
Author(s):  
FATIMAH OYENIKE OJO ◽  
TUKURA BITRUS WOKHE ◽  
MADU PASCAL CHIMA

Seasonal concentrations of eight total and bioavailable heavy metals (Cr, Cu, Cd, Zn, Mn, Ni, Pb an Fe), along with some physico chemical properties of soil in vegetable farms around the rock quarry in Durumi, Abuja was assessed to know the level of heavy metal pollution of the soil. Control and actual soil samples were collected from depths of 0.0 -5.0cm and 5.0 - 10.0cm during dry and rainy seasons. Heavy metal concentrations varied inconsistently in samples and control. Dry season levels of Zn(5.20mg/kg), Mn(19.44mg/kg), Ni(1.69mg/kg) and Pb(4.56mg/kg) and rainy season levels of Zn (0.26mg/kg), Pb(22.53mg/kg) at soil depth of 0.0 - 5.0cm, and dry season levels of Zn(1.19mgkg) and Ni(1.62mg/kg) along with rainy season levels of Cr (0.44mg/kg), Cd (0.06mg/kg), Zn(0.09mg/kg) and Fe(6.74mg/kg) at soil depth of 5.0 -10.0cm were all higher in samples than controls. However, seasonal mean total heavy metals in the soil samples were lower than the Maximum Allowable Limits (mg/Kg) for World Health Organization (WHO) and Food and Agriculture Organization (FAO). During dry season, heavy metals that indicated anthropogenic content, had anthropogenic levels that ranged in the order: Cd(16.67%) < Cu(54.17%)


Author(s):  
Gilda-Diana Buzatu ◽  
Ana Maria Dodocioiu

Abstract The study was conducted in two neighboring localities located in the northern county of Dolj, namely Murgasi and Bulzesti. The purpose of the study was twofold: namely, the study of heavy metal loading in order to identify possible pollution areas and to know the soil content of these localities in heavy metals in order to be able to give the verdict on the use of sludge from Craiova wastewater treatment plant as fertilizer on these soils. In order to determine the suitability of sewage sludge from the Craiova wastewater treatment plant as a fertilizer, physical and chemical properties and heavy metal content of the soils in these areas were analysed, as well as the chemical composition of sludge, according to Order 344/2004 of the Ministry of Environment and Water Management of Romania, respectively 13 physical and chemical parameters of the soils in these localities and the chemical composition of the sludge and respectively the quantity of heavy metals to be introduced annually into the soil by using it.


Sign in / Sign up

Export Citation Format

Share Document