scholarly journals Investigation of Trace Metal Bioaccumulation in Wastewater-Fed Fish: A Case Study

2021 ◽  
Author(s):  
Aslihan Katip
Keyword(s):  
Climate Change ◽  
Heavy Metals ◽  
Reclaimed Water ◽  
Domestic Wastewater ◽  
Farming Systems ◽  
Fish Farming ◽  
Technical Improvement ◽  
Alternative Farming ◽  
Food Shortages

It was stated that the use of urban wastewater in food production in the 1970s and 1980s may lead to the development of alternative farming systems in the future. Fish fed with wastewater are grown in Asian countries. However, due to the mixing of domestic wastewater with industrial wastewater, many toxic micro-polluting wastewaters affect fish farming even more. The objectives of this study were to investigate the suitability of fish for human food consumption in terms of metals, to provide a basis for the development of a standard on the concentration of heavy metals in reclaimed water used for fish aquaculture, and to search the possibilities of technical improvement of the system in terms of more efficient wastewater treatment. This study will be useful in terms of precautions and disadvantages that can be taken against food shortages that may be experienced with the effect of climate change.

Impact assessment of climate change on farming systems in the South Mediterranean area: a Tunisian case study

2017 ◽  
Vol 18 (3) ◽  
pp. 637-650 ◽  
Author(s):  
Imen Souissi ◽  
Jean Marie Boisson ◽  
Insaf Mekki ◽  
Olivier Therond ◽  
Guillermo Flichman ◽  
...  
Keyword(s):  
Climate Change ◽  
Impact Assessment ◽  
Farming Systems ◽  
Mediterranean Area ◽  
The South

Ecological impact of wheat and spelt production under industrial and alternative farming systems

2011 ◽  
Vol 27 (3) ◽  
pp. 242-250 ◽  
Author(s):  
Martina Bavec ◽  
Michael Narodoslawsky ◽  
Franc Bavec ◽  
Matjaž Turinek
Keyword(s):  
Climate Change ◽  
Ecological Footprint ◽  
Industrial Revolution ◽  
Ecological Impact ◽  
Farming Systems ◽  
Environmental Stability ◽  
Energy Prices ◽  
Alternative Farming ◽  
Political Security ◽  
The Impact

AbstractThe Industrial Revolution and intensification of agriculture have, in some cases, led to economic activities that profoundly influenced the ecosystem to the point where environmental stability and geographic political security are jeopardized. The uncertainty about oil reserves, rising energy prices and the threat of harmful climate change effects has intensified the search for alternative farming systems that reduce negative environmental impact. This study reports the ecological impact of conventional (CON), integrated (INT), organic (ORG) and biodynamic (BD) farming systems calculated from data collected in a field trial at Maribor, Slovenia, and interpreted using the SPIonExcel tool. This tool is a member of the ecological footprint family and describes the area necessary to embed a human activity sustainably into the ecosphere. Three-year results show a markedly reduced ecological footprint of the ORG and BD systems in production of wheat (Triticum aestivum L. ‘Antonius’) and spelt (Triticum spelta L. ‘Ebners rotkorn’), mainly due to the absence of external production factors. When yields were also considered, the ORG and BD systems again had a reduced overall footprint per product unit and increased ecological efficiency of production. Thus, ORG and BD farming systems present viable alternatives for reducing the impact of agriculture on environmental degradation and climate change. Nevertheless, room for improvement exists in the area of machinery use in all systems studied and yield improvement in the ORG farming system.

scholarly journals Wastewater characteristics in partially sealed cesspit: case study from Beit Dajan, Palestine

2017 ◽  
Author(s):  
Nezar Al-Atawneh ◽  
Nidal Mahmoud ◽  
Peter Van der Steen ◽  
Piet N.L. Lens
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
Water Infiltration ◽  
Municipal Sewage ◽  
Household Water ◽  
The Us ◽  
Us Epa

Raw domestic wastewater from an individual home was characterised and the water quality was followed after disposal to a partially sealed cesspit over the whole filling period of 4 months. The results revealed that raw wastewater was of medium strength according to the US EPA classification, and was more concentrated than Palestinian municipal sewage. Septage is the water accumulating in the pit, but above the accumulated bottom sludge. The septage was more concentrated than the raw sewage. The specific household water consumption, wastewater generated, septage collected by vacuum truck and septage water infiltration were respectively (59 L/c.d; 100%), (52 L/c.d; 87%), (11 L/c.d; 19%) and (40 L/c.d; 68%). The specific removal of pollutants in the cesspits were: BOD5 (78 g/c/d), COD (62 g/c/d), N total (52 g/c/d), PO4-P (66 g/c/d) and TSS (69 g/c/d). The specific pollution loads of emptied septage were BOD5 (5.6 g/c/d), COD (19.3 g/c/d), N total (4.8 g/c/d), PO4-P (0.17 g/c/d) and TSS (25.5 g/c/d). The concentrations of heavy metals (Cu, Pb, Mn, Fe and Zn) in septage water were not in compliance with heavy metals concentration limits of the Palestinian regulations for wadi disposal and effluent reuse in agriculture. As a consequence, septage disposal in wadis and agricultural fields is not safe. However, according to municipal regulations, the heavy metals concentrations allow septage to be disposed in the Al-Bireh wastewater treatment plant septage receiving unit, to be further treated in the aerobic system. Regarding nitrogen that is removed in the cesspit, the vast majority will most likely exfiltrate out of the cesspit into the surrounding soil, and might potentially reach the groundwater. Therefore, cesspits should be replaced by proper wastewater treatment systems.

scholarly journals The potential of agroforestry as an adaptation strategy to mitigate the impacts of climate change: A case study of Kiine Community, Kenya

2018 ◽  
Vol 10 (3) ◽  
pp. 170-177
Author(s):  
MUNENE ANNE NYARUAI ◽  
JOHN K. MUSINGI ◽  
BONIFACE N. WAMBUA
Keyword(s):  
Climate Change ◽  
Alley Cropping ◽  
Riparian Forest ◽  
Sampling Technique ◽  
Farming Systems ◽  
Local Environment ◽  
Adaptation Strategy ◽  
Healthcare Facilities ◽  
Impacts Of Climate Change

Nyaruai MA, Musingi JK, Wambua BN. 2018. The potential of agroforestry as an adaptation strategy to mitigate the impacts of climate change: A case study of Kiine Community, Kenya. Nusantara Bioscience 10: 170-177. This study has a purpose of evaluating the agroforestry potent as a conformation policy to the effects of climate change in the location of the study. One hundred farmers were used as study sample in collecting data with stratified sampling technique. To achieve data from individual farmers, both arranged and disarranged questionnaires were used. The study utilized questionnaires and observation timetable to collect data from individual farmers associated with the study objectives. The study found out that more preferable practices in agroforestry were planting the trees and shrubs as windbreakers, riparian forest buffers, silvopasture, and boundary planting while the less preferable practices were forest farming, alley cropping, and woodlots. It also found that the coaching to identify both indigenous and exotic agroforestry tree species is needed. In particular, 94% and 90% of the respondents got a feeling that the coaching on agroforestry practices and incorporation of exotic species is needed very much. The reason is that the feeling felt by respondents could give contribution to shortening the prolonged production time of trees on farm. On the contrary, 90% of the respondents are confident that agroforestry can increase catchment yield in rivers and streams, ameliorate the micro-climate, increase wood production as well as increase livestock health and products. The result showed that agroforestry has a direct link in increasing subsistence of people in the study area. Food (fruits), fodder, fuelwood, medicinal substances, gums, tannins, essential oils, fibers and waxes are the examples of agroforestry products sold by the surrounding farmers. The money will be used to provide second-tier facilities such as paying the tuition for their children or even getting healthcare facilities. The result shows that agroforestry is a method in agricultural production which can decrease the effects of human activities and climate change on the local environment. Agroforestry can increase the endurance of agricultural outturn to contemporary climate variance as well as prolonged climate change by means of the utilization of trees for intensification, diversification and supporting of farming systems.

Institutions, Alternative Farming Systems, and Local Reregulation

1997 ◽  
Vol 29 (4) ◽  
pp. 731-745 ◽  
Author(s):  
G Clark ◽  
I Bowler ◽  
A Shaw ◽  
A Crockett ◽  
B Ilbery
Keyword(s):  
Rural Economy ◽  
Farming Systems ◽  
Social Regulation ◽  
Regulatory Environment ◽  
Local Mode ◽  
Local Responses ◽  
Alternative Farming ◽  
New Challenges ◽  
Rural Institutions

The weakening of the postwar nexus of a productivist agriculture and a distinctive system of regulating the rural economy has created new challenges for British rural institutions. The task of diversifying rural and farm economies has required the institutions to change how they operate. Using the concept of the local mode of social regulation (MSR) we explore the interrelationships between the development of alternative farming systems and the institutional regulatory environment, using as a case study an area in northern England. We conclude by demonstrating how institutions cope with new policy challenges. The diversity of local responses to this challenge is illustrated and the links between local and national MSRs are explored.

scholarly journals Vulnerability and Local Innovation in Adaptation to Climate Change among the Pastoralists: Harshin District, Somali Region, Ethiopia

2017 ◽  
Vol 6 (2) ◽  
pp. 65
Author(s):  
Yohannes Gebre Michael
Keyword(s):  
Climate Change ◽  
Social Institutions ◽  
Farming Systems ◽  
Adaptation To Climate Change ◽  
Somali Region ◽  
Vulnerability To Climate Change ◽  
Wide Range ◽  
The Impact ◽  
Point Of Departure

The case study was made with the overall aim of understanding of pastoralist vulnerability and adaptation to climate changes. As a methodology five kebeles have been purposely selected representing pastoral and agro-pastoral farming systems in Harshin district of Somali Region in Ethiopia. The survey was conducted through semi-structured checklists with individual households and groups accounting a total of 124 people.The major findings of the study indicated that the environmental and socio-economic dynamics are skewed to negative trends where the livelihood of the pastoral community is under a big threat. Moreover, the combinations of factors including access to resources and social institutions, livelihood practices, inappropriate technologies and policies have attributed to trigger the vulnerability to climate change among the pastoralists in general and agro-pastoralists in particular. In adapting to the impact of climate change, pastoralists and agro-pastoralists are using wide range of group and individual local innovations, some farming practices and establishment of multi-functional grassroots institutions. Finally creating enabling policy environment for local experimentation and innovations in the framework of pastoralism and sustainability have been suggested as a point of departure in developing resilience to climate change and other pressures. 

Sign in / Sign up

Export Citation Format

Share Document