July 10, 2020
Using nanobubble generator in the production of whiteleg shrimp (Penaeus vannamei) in indoor raceway ponds resulted in high survival and growth rates, according to a new study.
“The results revealed that nanobubble has managed to maintain dissolved oxygen (DO) at the optimal range and affected the shrimp growth,” said authors Asri Ifani Rahmawati, et al. in the study, “Enhancement of Penaeus vannamei shrimp growth using nanobubble in indoor raceway pond,” which was conducted in East Java, Indonesia.
Fifty-meter ponds were stocked with 34,000 juvenile whiteleg shrimp at a stocking density of 680 per cubic meter. Results on day 81 showed that the nanobubble treatment yielded better survival rate, feed conversion ratio, total harvest and productivity. The total virus-bacteria also decreased, and total harvest and productivity were almost a hundred percent higher. The results were compared to another treatment using diffuser aerator.
The study investigated the effects of using a nanobubble generator on the growth environment. With whiteleg shrimp farming steadily growing in Indonesia, the authors stressed the need for “the best practices in technology and management of water quality” and acknowledged the major role of DO in improving water quality.
Nanobubble generator produces nano-sized bubbles to increase DO levels throughout the ponds. The machine that was used combined the gas-liquid flow with honeycomb structures for high-efficiency nanobubble generation. This nanobubble generator could maintain DO under optimal conditions during cultivation days. With this and its other “unique characteristics, nanobbuble has managed to improve DO levels in the ponds.”
There is a positive correlation between shrimp biomass and oxygen consumption rate. “The enhancement of growth proved that the energy absorbed by shrimp in a nanobubble pond is higher because of the oxygen levels available in the pond,” they say.
The study was published in Aquaculture and Fisheries.
Cheap membrane diffuser aerators compared in this article, as commonly used in energy intensive waste water treatment with large bubbles, are not efficient as we all know. This is a bad comparison used by the authors and researchers! Some EnviroCeramic Diffusers however do create a spread of nanobubbles and have not been compared in this article because they are highly efficient in comparison to any nano bubble technology out there!
As discussed, Our Requirement is as below.
Please provide an economical offer for (i) Algaecide Or Equivalent Biological product (ii) Nano Bubble Aerators.
Project : Lake Cleaning & Maintenance for One year
Nos of Lakes : 36 nos ( man-made lakes)
Total Area : 1,015,323 Sq.m (OR) 250.88 Acres
Depth : Maximum 0.6 m for all lakes
Source of Lake Water : Municipality supplied Drinking water quality (OR) Irrigation water quality
Treatment Objective :
• To Control or nullify growth of Algae, Fungus, Weed
• TO remove Bio-fouling
• To Clarify Water column
• To Remove Odor
• To Control mosquito breeding
• To Oxygenate & Oxidize ( we are planning aerators, but not confirmed)
Proposal Requirements : 1. Pricing as per volume ( per m3 or equivalent )
2. Testimonial ,especially in UAE region
• Required Water quality of Lake ( Presently same quality is maintained)
• Lake volume ( Individual)
Please let us know for any clarifications. We need your response as earliest as possible
hello arvind pls could u provide us your email id etc please….We can provide you actual case study of Kerala.
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