Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sealed water circulation method and device for prawn farming

A water cycle, closed technology, applied in the direction of chemical instruments and methods, microorganism-based methods, biochemical equipment and methods, etc., can solve problems such as environmental pollution, destruction of water sources for aquaculture, and ecosystem damage, to reduce production costs, The water treatment process is simple and the effect of avoiding sewage discharge

Active Publication Date: 2020-05-05
TIANJIN OCEAN PAL CAROL BIOTECH
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although changing the water will clean up the garbage in the shrimp breeding pond in time, but the direct discharge of these waste aquaculture water will pollute the environment, cause eutrophication of the water body, destroy the water source of the aquaculture water, and lead to the destruction of the ecosystem, so the treatment of the replaced wastewater become an urgent problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sealed water circulation method and device for prawn farming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A closed water circulation method for prawn farming includes the following steps:

[0037] Step 1. Cultivation of prawns in the prawn breeding pond, while cultivating microalgae (the density of microalgae is controlled at 60,000 to 70,000 / mL), which can be used as feed for prawns and treat the quality of the cultured water;

[0038] Shrimp culture pond: 80 cubic meters of first-level culture pond, shrimp seedling density of 10,000 / m3, culture time 20 days; in the first-level culture, the weight of the shrimp reaches 0.02-0.05 g / tail, and the pond is transferred;

[0039] The secondary culture pond is 300 cubic meters, the density of shrimp seedlings is 3000 / m3, and the culture time is 22 days; the weight of the shrimp in the secondary culture reaches 1.8-2.5 g / tail, and the pond is turned;

[0040] The three-level aquaculture pond is 1920 cubic meters, the shrimp seedling density is 450 per cubic meter, and the culture time is 27 days;

[0041] Step 2. The aquaculture water disch...

Embodiment 2

[0056] A closed water circulation method for prawn farming includes the following steps:

[0057] Step 1. Cultivation of prawns in the prawn breeding pond and at the same time cultivating microalgae to be used as feed for prawns and to treat the quality of the cultured water;

[0058] Shrimp culture pond: the first-level culture pond is 200 cubic meters, the density of shrimp seedlings is 6000 / m3, and the culture time is 20 days; the shrimp weight in the first-level culture reaches 0.02-0.05 g / tail, and the pond is turned;

[0059] The secondary culture pond is 800 cubic meters, the shrimp seedling density is 1500 / m3, and the culture time is 25 days; in the secondary culture, the weight of the shrimp reaches 1.8-2.5 g / tail, and the pond is turned;

[0060] The three-level aquaculture pond is 4000 cubic meters, the shrimp seedling density is 1500 / m3, and the culture time is 25 days;

[0061] Step 2. The aquaculture water discharged from the first-level, second- and third-level aquacultur...

Embodiment 3

[0074] A closed water circulation method for prawn farming includes the following steps:

[0075] Step 1. Cultivation of prawns in the prawn breeding pond and at the same time cultivating microalgae to be used as feed for prawns and to treat the quality of the cultured water;

[0076] Shrimp culture pond: 180 cubic meters of first-level culture pond, shrimp seedling density of 8000 / m3, culture time 22 days; in the first-level culture, the weight of shrimp reaches 0.02-0.05 g / tail, and the pond is turned;

[0077] The secondary culture pond is 980 cubic meters, the shrimp seedling density is 1300 fish / m3, and the culture time is 23 days; the shrimp weight in the secondary culture reaches 1.8-2.5 g / tail, and the pond is turned;

[0078] The three-level aquaculture pond is 3240 cubic meters, the shrimp seedling density is 440 per cubic meter, and the culture time is 25 days;

[0079] Step 2. The aquaculture water discharged from the first-level, second- and third-level aquaculture ponds is...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a sealed water circulation method and device for prawn farming. The method comprises the following steps: 1, farming prawns in a prawn farming pond, and at the same time, culturing microalgae; 2, enabling farming water discharged from the prawn farming pond to flow into a flocculation treatment pond, performing porous adsorption treatment, and performing aeration stirring and mixing; 3, discharging a water body in the flocculation treatment pond into a settling pond, and at the same time, casting cages with larvae of fairy shrimps into the settling pond; and 4, enablingtreatment water discharged from the settling pond to flow into a biological treatment pond, performing treatment so as to obtain clean circulation water, and discharging the circulation water back into the prawn farming pond for farming prawns. By adopting the method and device, the microalgae are cultured in the prawn farming pond, and the microalgae and residual feeds are recycled and treated through the fairy shrimps, so that wastewater is treated through an ecological chain, the prawn farming cost can be reduced, and zero emission to the environment can be achieved.

Description

Technical field [0001] The invention belongs to the field of prawn breeding, and in particular relates to a closed water circulation breeding device and a method thereof. Background technique [0002] The shrimp farming industry in China has a poor breeding success rate and survival rate this year. Although the aquaculture area continues to expand, the aquaculture output is constantly decreasing. There are many factors affecting the status of prawn farming. On the one hand, it is the nutritional problem of prawns. Unlike fish, prawns need constant moulting to grow. Therefore, the prawn farming water should be supplemented with sufficient conventional and essential nutrients in time. Satisfy the demand for the growth law of molting of prawns; on the other hand, the culture environment of prawns is very important. During the growth of prawns, environmental factors will stress the growth of prawns, and the growth rate and molting will be affected, and the molting time will be extend...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01K61/59A01K63/04C02F9/14C12N1/12C12R1/89C02F101/30C02F103/20
CPCA01K61/59A01K63/04C12N1/12C02F9/00C02F1/5254C02F7/00C02F3/327C02F3/322C02F3/08C02F1/66C02F2101/30C02F2103/20Y02A40/81
Inventor 何家瑞王永苓
Owner TIANJIN OCEAN PAL CAROL BIOTECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com