CN108623087B

CN108623087B - Process for treating bad water body and deep water culture

Info

Publication number: CN108623087B
Application number: CN201710184181.1A
Authority: CN
Inventors: 陈楷翰
Original assignee: Quanzhou Xinzhi Environmental Protection Engineering Co ltd
Current assignee: Quanzhou Xinzhi Environmental Protection Engineering Co ltd
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2021-01-26
Anticipated expiration: 2037-03-24
Also published as: CN108623087A

Abstract

The invention discloses a technique for treating bad water and deep water culture, which comprises the following steps: (1) manufacturing treatment equipment; (2) taking the upper water: (3) filtering; (4) emergency repair; (5) stabilizing the water quality; (6) and (4) water ecological reconstruction. The process of the invention comprises the following steps: the oxygen-enriched water on the upper layer of the water body is pumped to the water body and is oxygenated deeply through a perforated hose, micro bubbles and liquid oxygenating agents can be pumped, the water on the bottom layer and bottom mud can be disinfected and repaired, and particulate food can be pumped in the deep water shellfish culture, so that bait feeding pollution is avoided, and the problems of the current deep water culture industry, reservoirs, deep water black and odorous water bodies and the like are solved comprehensively.

Description

Process for treating bad water body and deep water culture

Technical Field

The invention relates to a water body treatment method, in particular to a process for treating bad water bodies and deep-water culture.

Background

The available water area space of the deep water culture is large, the capabilities of resisting wind waves, red tides and floating oil pollution are far superior to those of the traditional net cage and the shallow water culture, but a series of obvious technical problems exist, so that the deep water culture is basically concentrated in an area with excellent water quality at present; similarly, when the water body is black and smelly or bad, because the pollutants are usually gathered to the sediment area under the action of gravity, the endogenous pollution of the sediment occupies a great proportion.

Generally, in a water body, the pollution is heavier and the content of dissolved oxygen is insufficient when the water body is closer to a sediment area, and the traditional aeration equipment is difficult to drive the equipment into a deep water area with low energy consumption, so that the deep water breeding industry such as shells like scallop, abalone, sea cucumber and the like and some high-value fishes inhabiting in the deep water are seriously limited by water quality conditions and difficult to popularize in a large area, some deep stone mining pits and the like are difficult to recycle, and some black and odorous water bodies with larger water depth are difficult to treat.

In order to fundamentally break through the difficult problems in the industry, the invention provides a new device which can solve the problems, thereby greatly expanding the range of the breeding industry and ensuring that the bottom layer of the poor and black and odorous deep water body can obtain enough dissolved oxygen and water power.

Disclosure of Invention

The invention provides a process for treating bad water bodies and deepwater culture in order to solve the defects.

The above object of the present invention is achieved by the following technical means: a process for treating bad water bodies and deep water culture is characterized in that: the method comprises the following steps:

(1) manufacturing treatment equipment: the treatment equipment comprises a floating plate, an aerator and a large-flow low-lift water pump, wherein a water inlet box body is arranged on the floating plate, an ore material for water quality conditioning is filled in the water inlet box body, a water inlet is formed in one side of the water inlet box body, a water taking port is formed in one side of the water inlet box body, the water taking port is connected with the water inlet end of the large-flow low-lift water pump, and the water outlet end of the large-flow low-lift water pump is connected with a flexible pipeline provided with a concrete anchor and a small floater; the aerator is connected with the flexible pipeline through a tee joint; the flexible pipeline is a flexible pipe with holes, and the outer side of the pipe wall of the flexible pipe is attached with a bacteria-algae microorganism hanging film; a fiber rope is bound outside the flexible pipeline; the water inlet box body is provided with a filter material bin and a clear water bin, a partition plate is arranged between the filter material bin and the clear water bin, a through hole is formed in the partition plate, the water inlet is located in the side wall of the filter material bin, and the water intake is located in the side wall of the clear water bin; a medicament adding port is formed in the top of the clear water bin; the top of the filter material bin is provided with a discharge hole;

(2) taking the upper water: the equipment is placed on the water surface, water in a wind wave disturbance layer with the depth of 0-1 meter below the water surface is taken through a water intake, and the floating objects on the water surface are required to be avoided or isolated by an interception ring as much as possible;

(3) and (3) filtering: pumping the wind wave disturbance layer water filtered and adsorbed by the mineral fine sand layer in the water tank into the water through the treatment equipment, and allowing the water to flow out of the opening of the flexible pipeline to form an oxygen-enriched water ring surrounding the flexible pipeline, so that the water and bacterial algae attached to the fiber rope bound on the flexible pipeline jointly purify the water body;

(4) emergency repair: when the method is used for purifying bad water bodies, the first stage of treatment is an emergency restoration stage, micro bubbles can be pumped in before the water quality is improved to a specified water quality standard, preferably, 0-10mg of one or more of hydrogen peroxide, chlorine dioxide and ozone is additionally pumped in per liter of oxygen-enriched water to pre-oxidize the water quality, and besides the oxidant, 0-100mg of one or more of calcium nitrate and ferric nitrate is added in per liter of oxygen-enriched water to passivate bottom mud and adjust the bottom mud; after the dissolved oxygen in the deep water gradually rises to more than 1mg/L, the water body enters into facultative-aerobic atmosphere, and the black and odor basically disappears;

(5) stabilizing water quality: the second stage of treatment is a water quality stabilizing stage, at the moment, the mineral varieties and mineral amount of a mineral fine sand filter layer in a water tank body need to be adjusted simultaneously, the PH value of the water body is controlled to be 6.5-9, the optimal PH value is 7.5-8.5, and the dosage of a preoxidation medicament is reduced simultaneously, so that the nitrification and photosynthetic bacteria flora are promoted to grow, and the self-purification capacity of the water body is recovered until the water body can be gradually maintained only by oxygen-enriched water; when epiphytic bacteria and algae appear on the fiber rope, EM bacteria are pumped in to improve water quality flora, green algae and diatom can be pumped in properly to assist in building water ecology, and oxygen-enriched water is pumped in to maintain for a long time;

(6) water ecological reconstruction: in the third stage of water ecology reconstruction, after water quality is sampled and found to be stabilized to 5 types of water for a long time, the water ecology reconstruction method can be matched with pollution-resistant aquatic plant planting and animal putting; the dirt on the sand filter layer needs to be cleaned regularly; the process is characterized in that the method in the second stage is special, and the equipment is required to be operated cheaply and smoothly.

When deep-water culture is carried out, the water quality requirement is superior to 4 types of water quality and the dissolved oxygen is more than 4mg/L, and poor water quality areas are difficult to reach; the specific process comprises the following steps:

the first habitat construction stage: the device is hung in a deep water area to operate, the device can be started up in full time if necessary, and epiphytic bacteria and algae and zooplankton of the fiber rope are observed. When the epiphytic bacteria algae and plankton are found to meet the requirement of oxygen-enriched water (the dissolved oxygen is more than 4 mg/L), the baits such as brown algae and the like and the water purifying plants are taken out and tied and hung to grow, so that a small-range oxygen-enriched ecological system is formed around the flexible pipeline;

and the second step is that after a certain period of time, a culture cage is hung in the range of the oxygen-enriched ecosystem around the hose to breed the sea cucumbers, the seashells and the like in deep water, and the cultured animals are fed with the particulate food, the fish drugs and the like pumped by the hose, so that the dissolved oxygen is ensured to be more than 4 mg/L. The process is characterized in that the special habitat construction of the first step also needs to rely on the equipment to be carried out cheaply and smoothly.

Compared with the prior art, the invention has the advantages that: the device can extract the oxygen-enriched water on the upper layer of the water body and pump the oxygen-enriched water to the deep layer of the water body for oxygenation, the power requirement of the device is far lower than that of pumping bubbles to the deep water, and the device is not easy to cause over-strong disturbance of the environment. When necessary, micro bubbles and liquid oxygenating agents (such as hydrogen peroxide, calcium nitrate and the like) can be pumped, bottom layer water and bottom mud can be disinfected and repaired (such as chlorine dioxide, iodophor, engineering microorganisms, fish drugs and the like are pumped through a part of the water tank body), and particulate food, such as chlorella water and the like, can be pumped in the deep-water shellfish culture, so that bait feeding pollution is avoided, and the problems of the current deep-water culture industry, reservoirs, deep-water black and odorous water bodies and the like are solved comprehensively.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the process for treating the poor water body and the deep water culture is characterized in that: the method comprises the following steps:

(1) manufacturing treatment equipment: the treatment equipment comprises a floating plate 1, an aerator 2 and a large-flow low-lift water pump 3, wherein a water inlet box body 4 is arranged on the floating plate 1, an ore material 5 for water quality conditioning is filled in the water inlet box body 4, a water inlet 6 is arranged on one side of the water inlet box body 4, a water intake 7 is arranged on one side of the water inlet box body 4, the water intake 7 is connected with the water inlet end of the large-flow low-lift water pump 3, and the water outlet end of the large-flow low-lift water pump 3 is connected with a flexible pipeline 8 additionally provided with a concrete stopper and a small floater; the flexible pipeline 8 is a flexible pipe with a hole, and the outer side of the pipe wall of the flexible pipe is attached with a bacteria-algae microorganism hanging film. The aerator 2 is connected with a flexible pipeline 8 through a tee; a fiber rope 9 is bound outside the flexible pipeline 8; the water inlet box body 4 is provided with a filter material bin 4-1 and a clear water bin 4-2, a partition plate 4-5 is arranged between the filter material bin 4-1 and the clear water bin 4-2, a through hole 4-6 is arranged on the partition plate 4-5, the water inlet 6 is positioned on the side wall of the filter material bin 4-1, and the water intake 7 is positioned on the side wall of the clear water bin 4-2; the top of the clear water bin 4-2 is provided with a medicament adding port 4-3; and a discharge port 4-4 is arranged at the top of the filtering bin 4-1.

The first embodiment is as follows: the first is that some culture waste water in river, town pollutes village pond. By using the device, dolomite sand (calcium magnesium carbonate) is used as a filter material. 2mg/L of oxygen-enriched water and hydrogen peroxide used in the first stage and 10mg/L of calcium nitrate, and after 52 days, water is taken near the bottom mud, the water color is changed from brown to brownish green after the dissolved oxygen is higher than 1 mg/L. Pumping water containing chlorella and diatom after epiphytic green mud moss, and planting the foxtail algae at the pond edge, so that the water quality is stable in 5 types and dark green for a long time and various fishes are cultured. In the past, the equipment is not used, and aeration oxygenation is carried out only by using a high-power water wheel, so that the water quality is always in the state of poor 5 types, brown and black, the bottom mud is black, and only tilapia and ampullaria gigas are observed.

The second embodiment is as follows: in summer near the southern islands of Pu Tian, some abalone usually die in the water area. The test article is abalone, and a comparison group is arranged. The motor has the wattage of 50 watts, the water taking depth is nearly 1 meter, so that sunned hot water is avoided, the water is kept in a storm disturbance area, 200 abalone fries (5 cages) with the length of 3 centimeters are matched, and the abalone fries are hung and cultured beside a hose. The process is carried out according to the above process, and when insufficient dissolved oxygen occurs, the device is supplemented with micro-bubble oxygen increasing. The survival rate of the abalone fries is more than 85% within 100 days, and the survival rate is not more than 30% when the contrast group is naturally hung.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A process for treating bad water bodies and deep water culture is characterized in that: the method comprises the following steps:

(4) emergency repair: when the method is used for purifying bad water bodies, the first stage of treatment is an emergency restoration stage, micro bubbles can be pumped in before the water quality is improved to a specified water quality standard, 0-10mg of one or more of hydrogen peroxide, chlorine dioxide and ozone is additionally pumped in per liter of oxygen-enriched water to pre-oxidize the water quality, and besides the oxidant, 0-100mg of one or more of calcium nitrate and ferric nitrate is added in per liter of oxygen-enriched water to passivate bottom mud and adjust the bottom mud; after the dissolved oxygen in the deep water gradually rises to more than 1mg/L, the water body enters into facultative-aerobic atmosphere, and the black and odor basically disappears;

(5) stabilizing water quality: the second stage of treatment is a water quality stabilizing stage, at the moment, the mineral varieties and mineral amount of a mineral fine sand filter layer in a water tank body need to be adjusted simultaneously, the pH value of a water body is controlled to be 6.5-9, meanwhile, the dosage of a preoxidation medicament is reduced to promote the nitrification and the enlargement of photosynthetic bacteria groups, and the self-purification capacity of the water body is recovered until the water body can be gradually maintained only by oxygen-enriched water; when epiphytic bacteria and algae appear on the fiber rope, EM bacteria are pumped in to improve water quality flora, green algae and diatom can be pumped in properly to assist in building water ecology, and oxygen-enriched water is pumped in to maintain for a long time;