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Baseline study in environmental risk assessment : site-specific model development and application

Alam Asifa, Mahmood Adeel, Chaudhry M. Nawaz, Ahmad Sajid Rashid, Safa Noor Ul, Alghamdi Huda Ahmed, Alhamdi Heba Waheeb, Ullah Rizwan

Archives of Environmental Protection

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2022

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Vol. 48, no. 3

80--88

EN

Environmental risk assessment is one of the key tools in environmental engineering. This risk assessment can be qualitative or quantitative and it is based on preliminary studies i.e., baseline study for waste disposal sites. Even though the literature exists on baseline study in general, still there is a lack of guidance regarding development of a site-specific baseline study model for a waste disposal site. This study has two-fold aim, firstly, how to develop site-specific baseline study model for a selected dumping site, and secondly, how this site-specific baseline study can support the environmental engineering via mathematical risk estimation. Mahmood Booti Open Dumping Site (MBODS) is selected to demonstrate the development and application of site-specific baseline study model. This is followed by building a framework that shows how the output of the baseline study can lead to environmental engineering via mathematical risk estimation. The paper provides a mechanism of how to construct a bespoke baseline-study model that is readily useable, avoiding procurement of expensive computer software and yet smoothly connecting with the follow-on stages of the risk assessment. The work presented in this paper can be reproduced repeatedly to create site-specific baseline study models for risk assessment of other waste disposal sites in a cost-effective, consistent and cohesive manner.

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Application of EASEWASTE model for assessing environmental impacts from solid waste landfilling

Alam Asifa, Chaudhry Muhammad Nawaz, Ahmad Sajid Rashid, Batool Aadila, Mahmood Adeel, Al-Ghamdi Huda Ahmad

Archives of Environmental Protection

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2021

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Vol. 47, no. 4

84--92

EN

Dumping sites or landfills are considered as foremost common option of waste management worldwide. Dumping sites, often not lined, represent a potential environmental issue causing a long-term risk to the environment and health. A number of computers model-based studies have described the solid waste collection and its management, but provide little information about the relative contributions regarding environmental impacts of landfilling especially in the context of developing world. The aim of study was to estimate environmental impacts from dumping site by using EASEWASTE model. A case study was carried out at an old and closed dumping site filled with mixed waste without bottom liner, no leachate collection and gas collection. On the basis of the existing dumping site investigation, a Mahmood Booti Dumping Site Scenario was developed, and related data of waste generation & composition was collected and added to assess environmental impacts. The results show that human toxicity via soil (9.14E+09 m3 soil) had the highest potential impact, followed by global warming (8.83E+11 Kg CO2-eq), eco-toxicity in water (6.25E+11 m3 water), and eco-toxicity in soil (6.54E+10 m3 soil). This is mostly caused by leaching of heavy metals from ashes (e.g. residues from roads cleaning and vacuum cleaning bags), batteries, paper and metals. The adopted risk analysis approach uses easily accessible computer aided models, for open dumping sites, appears to be a key tool to assist decision makers in establishing priorities for remediation action.

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Environmental hazards of the metallurgical wastes dumping sites - barium and arsenic ions elimination with ionits

Sanak-Rydlewska S., Gala A., Wajda Ł.

Gospodarka Surowcami Mineralnymi

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2011

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T. 27, z. 2

79-88

EN

The paper presents an impact of the metallurgical wastes dumping site on the following parts of the environment: air, soil and surface waters. Some of the methods used to prevent wastes interactions were showed. The results of the metallurgical wastes leachate samples research, in which toxic metal ions have been found, are presented results of examinations performed on water extracts derived from two types of metallurgical wastes were given. The chemical analysis of water extracts indicate exceeded concentration of toxic metals, such as: lead, arsenic, barium and others. Preliminary results of some metals elimination from the water extracts with PUROLITE ion-exchangers were also presented. The utilised acidous cationit with Na+ groups exchanges the Ba2+ ions in almost 90%, similar to S 930 ionit with chelating groups (Table 5 and 7). Whereas the anionit with hydroxyl groups removes the arsenic ions(V) from the solution with the 60% efficacy (Table 7).

PL

W pracy omówiono wpływ składowiska odpadów metalurgicznych na sfery środowiska: powietrze atmosferyczne, glebę i wody powierzchniowe. Przedstawiono niektóre sposoby zapobiegania oddziaływania tych odpadów. Podano wyniki badań wyciągów wodnych próbek odpadów metalurgicznych, w których stwierdzono obecność jonów metali toksycznych dla środowiska. Analizy chemiczne wodnych wyciągów wskazują na przekroczenia zawartości metali toksycznych, m.in. takich jak: ołów, arsen, bar i in. Przedstawiono również wstępne wyniki eliminacji zawartości niektórych metali z wyciągów wodnych za pomocą jonitów Firmy PUROLITE. Zastosowany silnie kwaśny kationit z grupami Na+ wykazuje zdolność wymiany jonów Ba2+ prawie w 90%, podobnie jak jonit z grupami chelatującymi S 930 (tab. 5 i 7). Natomiast anionit z grupami hydroksylowymi usuwa z roztworów jony arsenu(V) z wydajnością około 60% (tab. 7).

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Charakterystyka i ocena oddziaływania zapachowego źródeł odorantów w gospodarce ściekowej i odpadowej w Polsce na podstawie badań ankietowych

Kulig A., Lelicińska-Serafin K., Podedworna J., Sinicyn G., Heidrich Z., Czyżkowski B.

Chemik

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2009

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Vol. 62, nr 11

414-420

PL

W pracy scharakteryzowano oraz oceniono oddziaływanie zapachowe typowych potencjalnych źródeł odorantów w obiektach gospodarki komunalnej w Polsce. Wyróżniono systemy kanalizacyjne, pompownie i oczyszczalnie ścieków wraz z obiektami unieszkodliwiania osadów ściekowych oraz zakłady segregacji, odzysku i unieszkodliwiania odpadów komunalnych. Do inwentaryzacji obiektów wykorzystano liczne, ale rozproszone i o różnej jakości, dane źródłowe. Dane na temat oddziaływania zapachowego obiektów gospodarki ściekowej i odpadowej uzyskano w wyniku badań ankietowych metodą CATI przeprowadzonych na terenie całej Polski. Szczegółowa analiza uzyskanych wyników badań pozwala określić ilość oraz rozmieszczenie obiektów uciążliwych, a także skalę i uwarunkowania ich uciążliwości.

EN

The paper characterises and evaluates the olfactory impact of typical potential odorant sources in municipal management facilities in Poland. The following types of the facilities have been distinguished: wastewater systems, sewage pumping stations, wastewater treatment plants, sludge processing facilities as well as municipal solid waste segregation, recovery and disposal plants. The source data used for the identification of individual facilities were numerous but dispersed and of varying quality. The data on the olfactory impact of the wastewater and solid waste management facilities were obtained from a questionnaire survey based on CATI method and conducted all over Poland. A detailed analysis of the results produced by the survey makes it possible to determine the number and geographical distribution of the noxious facilities as well as the scale and the underlying conditions of their noxiousness.