Title:
Evaluation of Soil Contaminant Uptake and Bamboo Growth Rate Under Wine Effluent and Acid Mine Drainage Soil Conditions of Two Bamboo Specie Seedlings Grown under Greenhouse Conditions for Fourteen Months
Author(s):
Mthabela, Z., Bada, S.
Document(s):
Paper
Poster
Abstract:
The South African wine and coal industries are well established and economically stable and are ranked amongst the top ten producers globally. Pollution is the negative by product that forms from these industries and greener and more cost-effective solutions have become imperative. A three-months pot trial test was performed before the main greenhouse test to help establish the most suitable bamboo specie to be used. Two bamboo species were selected for the greenhouse test, and it took place under conditions of 26°C and room humidity of 50%. The plants were translocated to a total of 112 pots plants filled with wine effluent soil and non-contaminated soil from the Western Cape and acid mine drainage soil and non-contaminated soil from the Mpumalanga area. The bamboo seedlings dried up a week after translocation and were initially watered three times a week but formed algae around the second month and were left to fully dry before watering resumed to once a week. The soil analysis was conducted and revealed that the WE bamboo had more nutrients when compared to the control soil. The AMD soil illustrated less soil nutrients as compared to the wine effluent soil. The plants steadily grew in the first six-months and a drought season was introduced thereafter, and the samples lost majority of their leaves and the pH dropped during this period and began increasing after two months on both soil types when the plants were watered. The Bambusa Balcooa (B. Balcooa) illustrated more resilience and grew more new leaves and had higher pH on the AMD soil as compared to the WE soil; it had the highest pH of 6.28 after the fourteen months period (which had a 3.01 pH increase). The Bambusa Bambos (B. Bambos) had the highest pH of 5.14 on the AMD soil by the end of the test period and an overall pH increase of 2.25. The drought helped indicate the specie’s resilience and ability to survive severe drought. The B. Balcooa and B. Bambos species grown on contaminated and uncontaminated soil indicated a form of contaminant uptake, improved pH values and growth after dry conditions for the fourteen-month duration it was tested and indicated potential for soil rehabilitation on AMD soil conditions.
Keywords:
elemental analysis, wine effluent soil, bamboo seedlings, acid mine drainage soil, pH
Topic:
Sustainable Resources for Decarbonising the Economy
Subtopic:
Biomass resources and potentials
Event:
30th European Biomass Conference and Exhibition
Session:
1DV.5.10
Pages:
283 - 290
ISBN:
978-88-89407-22-6
Paper DOI:
10.5071/30thEUBCE2022-1DV.5.10
Price:
FREE
