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Integrated treatment strategy
Published in Xiaoling Lei, Bo Lu, Integrated Water Environment Treatment, 2021
As for facilities with drainage pipes/channels below, the pipes/channels shall be inspected as required, and according to the inspection results, the blockages shall be timely cleaned up to repair closed pipes and channels. Regular weeding, pests control and vegetation pruning shall be carried out, and such maintenance for plants of public projects can be carried out by experienced garden workers in accordance with relevant provisions for urban landscaping. Measures for controlling the unpleasant odor and breeding of mosquitoes and flies must be taken in summer. Proper maintenance management for plant recovery growth in summer shall be carried out by removing dead and decaying plants, timely repairing protective slopes and cultivating protective slope plants and transplanting and replanting missing plants to ensure the purification effect of constructed wetlands and beautiful overall appearance. Relevant data or urban landscaping administrative departments can be consulted for the selection of plants. Wetland plants shall be properly harvested according to the plant growth laws, actual growth conditions and design documents. As for newly cultivated plants or under the long-term arid or other severe climatic conditions, attention shall be paid to the irrigation and maintenance of plants in the facilities.
Building Construction Technology and Management
Published in P.K. Jayasree, K Balan, V Rani, Practical Civil Engineering, 2021
P.K. Jayasree, K Balan, V Rani
Landscaping is a process which changes a land area in one or all three categories: Plants—the addition of decorative, eatable, indigenous, or other plant types. Terrain—the shape of the land is altered by grading, backfilling, mounting, terracing, etc. Structures—building of fences, patio coverings, walls, decks, planters raised, or other building features. For aesthetic and economic reasons, humans manipulated the land. Adding plants, modifying the existing terrain and building structures are all part of landscaping. Landscaping today refers to the design, layout, and construction of gardens that improve the physical appearance and generate helpful space for outdoor activities around a house or building. Landscape is a task that brings science and art together. With horticultural knowledge and familiarity with landscape design elements and principles, a landscape expert can help you transform your property. The landscape architect, designer, or contractor with whom you choose to work guides you through the landscape design and construction phase. Landscape plans transform ideas into visuals and ensure that scale and layout are considered before construction. Your landscape designer may develop a plan for your yard that fits your needs and gives remedies to specific problems of landscaping, such as slopes, wind, sun, or space.
Cost-based Facility Opportunities
Published in Scott Offermann, Creating a Strategic Energy Reduction Plan, 2020
Landscaping considerations include vegetation between wall and parking lots providing a break between the heat island and the building. Shading of the building by landscaping or with awnings can also reduce the heat gain. Figures 6–7 and 6–8 show the landscape break reducing the heat island effect as well as the shading benefits of the building. Comparing the two pictures it is easy to realize the benefits.
Radiological hazard assessment of natural radioactivity in Avcilar region, Turkey: a case of Istanbul University-Cerrahpasa Avcilar Campus
Published in International Journal of Environmental Health Research, 2022
Naim Sezgin, Bilge Ozdogan Cumali, Namik Aysal, George William Kajjumba, Semih Nemlioglu
Distribution maps of 226Ra, 232Th, and 40K activity concentrations are elicited in Figure 2(a–c), respectively. Generally, lower concentrations were detected in samples near campus settlement, S15. This can be attributed to the fact that most of the top soil in this region is imported for gardening and landscaping purposes. 226Ra levels were high in northern part, S24. The area consists of clay and sand intercalations in the upper layers with thin limestone interlayers mixed with macrofossil shells; limestone and granite rocks are known to contain a significant amount of radium (Sakinç et al. 1999; Özgül 2012). The high concentrations of 232Th and 40K near the shoreline might be attributed to surface rainwater runoff.
Praseodymium-oxide decorated montmorillonite nanocomposite as a novel admixture for dredged soil stabilisation
Published in Geomechanics and Geoengineering, 2022
Falk Ayub, Suhail Ayoub Khan, Sarmishta Rudra Paul
Soil stabilisation utilises dredged material for a wide variety of engineering uses such as brick production, fill material, subgrade construction, landscaping, landfill covers, reclamation, and riprap for the safeguard of dikes and slopes against erosion (Dermatas et al. 1999), etc. For each application, a concise analysis regarding the geotechnical characterisation of dredged soil constitutes an indispensable factor. Traditional treatment methods mostly encompass the employment of additives like cement (Bahmani et al. 2014), lime (Eujine et al. 2019), rice husk (Liu et al. 2019), fly ash (Coudert et al. 2019), kiln dust (Yoobanpot et al. 2017), bituminous (Andavan and Kumar 2020), and recycled materials (Al-Bared et al. 2019). But these methods suffer from various flaws like consumption of non-renewable resources (MolaAbasi et al. 2020), tarnishing the essence of vegetation and groundwater (Ekinci et al. 2022), disposal problems, negative impact on the environment, sulphuric acid attack (Yao et al. 2019), elevated cost and inadequate treatment effect (Wang et al. 2019). Hence, it is essential to find an alternative additive that can mask these flaws and furnish a commendable solidity to the dredged soils.
Co-planting of Salix interior and Trifolium pratense for phytoremediation of trace elements from wood preservative contaminated soil
Published in International Journal of Phytoremediation, 2021
Anne Lachapelle, Sara Yavari, Frédéric E. Pitre, François Courchesne, Jacques Brisson
The soil was artificially constructed and contaminated with PCP and CCA to ensure identical soil conditions for all treatments and replicates. The soil composition and the contamination levels reflected the brownfield soils typically found at wood pole storage sites. The soil was a mixture of 50% volume of calcareous stone dust (0–5 mm), 25% organic-matter rich topsoil, 12.5% sand (2 mm) and 12.5% 6.35 mm construction limestone gravel (Table 1). The soil components were purchased from a landscaping materials company, Matériaux Paysagers Savaria Ltée. The pots (20 L) were filled at 75% volume capacity with either uncontaminated soil or PCP- and CCA-C contaminated soil. The constructed soil was contaminated with crystals of PCP (97% grade purity, Stella Jones Inc.) and liquid CCA-C (60% purity, Stella Jones Inc., containing 47.5% CrO3, 18.5% CuO and 34% As2O5). PCP was introduced in the soil with the surfactant cocamidopropyl betaine to enhance solubility. After adding PCP and CCA, wetting and drying cycles were repeated for seven weeks by watering the soil every other day to mimic the aging process of contaminants in the soil. The contaminated soil was prepared one year prior to beginning the experiment to further allow for aging. During that time, the soil was stored in closed containers for eight months and then thoroughly mixed to maximize homogeneity between pots.