Chive Growth in Biologically Treated Early Planetary Base Wastewater

Vairavan, Bala; Morse, Audra; Jackson, W. Andrew; Green, Cary

doi:10.4271/2005-01-2822

Cited by 1 publication

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to alleviate the negative impact of urine or sanitary wastewater on plant growth, the wastewater can be pretreated and then added into the plant culture system. Vairavan et al [11] added the simulated early planet base wastewater into the nutrient solution of chives after treated by a bioreactor. It was found that the addition of treated wastewater could also improve the yield of chives, however, because the biological pretreatment was not complete, the nitrification and organic degradation processes continued to proceed in the plant culture system.…”

Section: Introductionmentioning

confidence: 99%

The Feasibility Research on Reusing High Salinity Wastewater as a Plant Nutrient Medium for Plant Hydroponics in CELSS

et al. 2022

View full text Add to dashboard Cite

The reuse of wastewater is a key problem in controlled ecological life support system (CELSS). In this study, the feasibility to reuse the treated wastewater (including sanitary wastewater and urine wastewater) as a plant hydroponic medium was verified. Two salt-tolerant plants, apium graveolens Linn (celery) and mesembryanthemum cordifolium L.F. (cordifolium), were cultivated with the reused medium or Hoagland nutrient solution, and the characteristics of crop growth, hydroponic medium composition, and elements absorption by plants were investigated. The results showed that the reused medium replenished with micronutrient elements could maintain the normal growth of cordifolium and celery crops. The biomass productivity of cordifolium cultivated by the recycled medium (121.53 g FW/strain) was higher than that cultivated by Hoagland nutrient solution (98.33 g FW/strain). The nutrient elements accumulation in plant dry mass indicated that plants could effectively utilize the recycled mineral elements in wastewater, and cordifolium exhibited better stability and adaptability to salt-induced environment. The absorption capacity of Na and Cl elements in cordifolium cultivated within the reused medium was the highest, which was 4.54% DW and 2.63% DW, respectively. This study demonstrated the feasibility to directly reuse domestic wastewater as the main ingredient for plant hydroponics, which could provide insights into design and operation of plant hydroponics system and water circulation system in CELSS.

show abstract

Section: Introductionmentioning

confidence: 99%