102 results about "Benthos" patented technology

The invention relates to a bentonic organism collector which comprises two grab buckets (10), a locking device and a closing device, wherein the grab buckets (10) are used for opening or closing an opening at the bottom of a box body (20); clamping pieces (30) are arranged on the grab buckets (10), fastening pieces (40) are arranged on the box body (20) and move upwards or downward relative to the box body (20), and the clamping pieces (30) and the fastening pieces (40) are clamped or separated to lock or unlock the opening states of the grab buckets (10) at both sides of the box body (20); and the end part of a steel wire rope (50) is fixed on one grab bucket (10), moves round the other grab bucket (10) and the box body (20) at the same side and arranged above the box body (20). The bentonic organism collector can pick up bentonic samples, not only can reliably sample, but also can exactly collect bentonic shellfish samples in set areas and depths, and is beneficial to protecting seafloor biotic environment.

The controllable fast reservoir blue-green alga bloom eliminating method includes: raising filter feeder fishes; raising and protecting snails, crabs, calms and other water benthic fauna to degrade excrement of the fishes; and controlling water level to favor the disturbance of wind wave to bottom sludge, to ensure the ingestion of water benthic fauna to silt and the limitation of snails' ingestion area. The present invention adopts biological treatment of reservoir blue-green alga bloom without lowering eutrophic salt condition of water.

The invention provides a river ecological flow determining method with the benthos diversity as a target. By means of the method, the research methods of ecological water requirements are enriched, and meanwhile, the ecological flow determining method with benthos as indicator organisms is provided. The method comprises the steps that river segment selection is researched; the benthos in a river segment are researched and ecological environment elements are inspected on site; the type of a benthos habitat and the characteristic parameter threshold value of the benthos habitat are determined; the optimal type of the benthos habitat which maintain the benthos diverse is determined; the fluvial geomorphology measurement of the river segment is researched; a two-dimensional hydrodynamics modelis constructed; the benthos habitat of the river segment is simulated in different flows; the optimal flow for maintaining the benthos diverse is determined. The method has the advantages that the ecological flow which enables the benthos diversity to be highest can be very accurately obtained, and the problem that by means of a general ecological flow determining method, the result cannot reflect the actual demands of aquatic organisms is solved.

The invention discloses a marine benthos on-site automatic shooting and measuring device which comprises a movable support and a vertical rod. The movable support is provided with a sample frame, the vertical rod is provided with a shooting end which is provided with an underwater camera, the shooting end penetrates through a clamping ring at the upper end of the movable support and then is placed above the sample frame and can be used for adjusting the distance between the underwater camera and the sample frame, and the underwater camera is in line connection with a shooting processing system arranged outside the movable support. The movable support is arranged and provided with the underwater camera, and therefore when an underwater sample is shot, the movable support is arranged on a survey station and located underwater to observe benthos in the sample frame, the vertical rod is used for adjusting the distance between the underwater camera and the sample frame, the underwater camera is used for shooting and recording the conditions of the sample and sending images to the shooting processing system, and therefore the types and the quantity of the benthos in the sample frame can be conveniently counted, sample data can be collected automatically, and the shooting processing system can be connected with a rechargeable storage battery. The device is suitable for measurement on the sea.

The invention belongs to the technical field of ocean engineering, and particularly relates to a submarine sediment sampling device for ocean engineering. in view of the problems that a device is relatively low in stability, and cannot perform massive sampling simultaneously, expel benthos or prevent re-dropping of a sampled sediment into ocean, the following scheme is provided: the sampling device comprises a buoyancy plate, wherein a fixed outer ring is arranged on the external wall on one side of the bottom of the buoyancy plate; a water-proof motor housing is arranged on the external wallof the bottom of one side of the fixed outer ring; motors are arranged in the water-proof motor housing; brackets are arranged on the external wall of the bottom of one side of the fixed outer ring; and the brackets are L-shaped. The stability of the sampling device is improved; infaunae are expelled by the vibrating action of the motors and the collision action of ball bodies and arc slide blocks, so that interference with a sampling process is avoided; the sampled sediment is separated from a submarine plane, so that the sampling is facilitated; and a pull plate is pulled upwards to allow clamping blocks to clamp the submarine sediment drilled out.

The invention discloses a snail-fish-grass stereo integrated system for controlling eutrophication of a water body. The snail-fish-grass stereo integrated system for controlling the eutrophication ofthe water body comprises ecological floating beds, a fish farming zone and a benthos zone, wherein multiple sets of the ecological floating beds are equidistantly arranged on a water surface in parallel, and floating green plants are uniformly planted or aquacultured thereon; the fish farming zone and the benthos zone are formed under the water surface at the lower ends of the ecological floatingbeds; a sediment part, a submerged plant part and a snail activity part are arranged in the benthos zone. The snail-fish-grass stereo integrated system purifies and remedies a high-concentration nitrogen-phosphorus water body by a bioremediation technology, is strong in adaptability, high in efficiency of remedying the water body per unit volume, eco-friendly, low in production and maintenance costs and good in remedying effect, increases economic benefits, saves remedying fund, and is beneficial to popularization and application to an eutrophic water zone.

The invention relates to a method for controlling blue-algae bloom outbreak of urban landscape water. The method comprises the following steps: for revetment and lake bottom hardened urban landscape water, building a hardened planting pool at a river bank, and planting emergent plants; planting submerged plants in a flowerpot, and sinking the flowerpot to the bottom of the water; and planting floating-leaved plants in the flowerpot, and placing on the bottom of the water. By planting the aquatic plants and ensuring the planting area and biomass of the aquatic plants, the excessive growth and breeding of algae in the water are inhibited, and the blue-algae bloom can be inhibited and eliminated. When the blue-algae bloom outbreak is effectively controlled, the clear state of the water can be maintained, the landscape effect of the water is improved, a good living space and habitat can be provided for bottom inhabiting organisms, a high-density zooplankton colony is formed, and the biological diversity is improved. The potted aquatic plants are easy to replace and manage, and the method has the advantages of simplicity in operation and maintenance, low investment and low energy consumption.

The invention discloses a hard-shell benthos anti-scouring structure of a marine foundation and a construction method. The benthos anti-scouring structure comprises piles and stones to which hard-shell benthos is attached to grow and hard-shell benthos. The construction method specifically comprises the steps of arranging the multiple cement piles and stones to which the hard-shell benthos can beattached to grow around the marine foundation, and scattering young hard-shell benthos to an area formed by the marine foundation, the piles and the stones; and after the hard-shell benthos is attached to the piles and the stones to grow, scattering the young hard-shell benthos for multiple times to supplement gaps among the benthos until a formed benthos anti-scouring hard shell layer of the marine-foundation-benthos-soil-body completely covers an original soil layer. The anti-scouring structure is simple in form, convenient to construct, cost-saving, high in compatibility among the benthos and the marine environment, and capable of solving the problems that a common throwing and feeding protective layer is prone to failure and the marine engineering is prone to causing marine ecologicaldamage to the marine environment while effectively preventing scouring.

The invention discloses a detachable bottom-sitting ADCP bearing device, which comprises a support frame, an outer frame, an inner frame and an anti-touch bottom frame. The outer frame has a degree of freedom of rotation relative to the support frame, and the inner frame has a degree of freedom of rotation relative to the outer frame. The anti-bottom frame limits the bottoming surface of the carrying device to four sides, and the ADCP is fixed in the fixed frame of the inner frame. The whole structure design makes it possible to adjust the ADCP to a position perpendicular to the water flow after the carrying device is put into the seabed. , the inner frame is connected with a counterweight, so that the front of the ADCP will not be upside down after sinking into the seabed. The whole structure adopts a detachable connection method, which is convenient for maintenance. It can prevent ADCP from being disturbed by underwater organisms in water, so that the detection results are more stable.

The invention discloses an automatic suction and ecological treatment system for polluted bottom sediments of rivers and belongs to the technical field of restoration of bottom sediments of rivers. The system is composed of a main-body waterwheel, a drainage trench and an artificial wetland, wherein the waterwheel mainly comprises eight waterwheel blades with same specifications, a waterwheel rotating shaft and a waterwheel bracket; and microorganism carriers are laid on the surface of each waterwheel blade, and the top end of each blade is provided with a sediment suction barrel. The waterwheel is driven to rotate through the flowing of the water body of a river, so that the sediment suction barrels at the top ends of the blades carry out the process of sediment suction, sediment discharge and sediment suction repeatedly, bottom sediments of the river are introduced in the constructed supported artificial wetland to carry out ecological restoration treatment, in such a way, the harm of polluted bottom sediments of rivers is reduced or disappears. The system disclosed by the invention has the advantages of no energy consumption, no required manual operation basically, no operation and management charges, capability of persistently removing sediments, good bottom sediment treatment effect, almost in-situ ecological restoration treatment, capability of not damaging the living environment of local benthos, and capability of achieving a positive effect on the self-cleaning of the water body of a river, and the like.

The invention belongs to the field of biosystematics and molecular biologics, and in particular discloses a cytochrome C oxidase O gene I (COI) gene sequence of species of coral reef benthos and a species identification method utilizing the COI gene sequence. The standard sequences of the COI gene of different dominant species and common species of Hainan coral reef benthos are as shown in the nucleotide sequences of SEQ ID NO.1-14. On the basis of massive study and investigation, the standard COI gene sequences of 14 dominant species and common species of Hainan coral reef benthos are provided, and meanwhile by adopting the method, the species can be rapidly and effectively identified.

The invention provides an activated-carbon composite water treatment agent which is prepared from the following ingredients in parts by weight: 1-5 parts of albite, 1-5 parts of quartz, 20-35 parts of natural zeolite, 10-20 parts of attapulgite, 1-5 parts of sepiolite and 40-60 parts of activated carbon. The invention further provides a preparation method and use of the activated-carbon composite water treatment agent. According to the activated-carbon composite water treatment agent, raw materials mainly are a variety of natural ores and are abundant in source and low in cost, the preparation method is simple, and the eutrophication of water bodies can be effectively controlled through simultaneously controlling endogenous and exogenous pollutants of the water bodies. The water treatment agent is environment-friendly and can provide a good external environment for benthos of the water bodies.

The invention discloses a pressure-maintaining and heat-preserving sampling transfer system for marine benthos. The system comprises a pressure-maintaining assembly, a sampling assembly and a circuitbarrel, wherein the sampling assembly is inserted into the pressure-maintaining assembly and is connected with a culture kettle; an inlet sealing assembly is arranged at an inlet in the middle of thepressure-maintaining assembly, a heat-preserving assembly is bonded on the outer wall in the middle of the pressure-maintaining assembly, a pressure compensation device and a bait cylinder are arranged on the outer wall at the bottom of the pressure-maintaining assembly, the pressure compensation device is communicated with the pressure-maintaining assembly, and the bait cylinder is communicated with the pressure-maintaining assembly through a switch valve; a temperature sensor and a pressure sensor are arranged on the inner wall of the pressure-maintaining assembly; the circuit barrel is installed on the outer wall of the pressure-maintaining assembly, a power supply and a controller are arranged in the circuit barrel, and supplies power to the heat-preserving assembly, a controller, thetemperature sensor and the pressure sensor, and the controller is connected with each of the temperature sensor, the pressure sensor and the heat-preserving assembly. The pressure-maintaining and heat-preserving sampling transfer system disclosed by the invention can realize the trapping and pressure-maintaining and heat-preserving culture of the marine benthos and can effectively ensure the in-situ vital characteristics of the marine benthos.

The invention discloses a sediment and benthic organism collecting device, and relates to the field of water ecology and environmental monitoring. The sediment and benthic organism collecting device consists of a grab bucket, a force applying rod and a stressed closed pull rod, and is applicable to collection of hard or grassy water sediments and benthic organisms. The sediment and benthic organism collecting device has the advantages as follows: through connection of the force applying rod and the grab bucket, benthic samples can be collected through manual force application; the sediment andbenthic organism collecting device not only can collect loose and soft sediment samples, but also is suitable for the collection of hard sediments, multi-gravel sediments and aquatic plants; the sediment and benthic organism collecting device improves the quantitative sampling accuracy, reduces the possibility of sediment collection failure, can meet vertical collection of surface sediments underthe condition of flowing water, is convenient to carry, easy to operate and short in sampling time, and can collect the surface sediment samples on a relatively large area at one time.

The invention discloses a seafloor sediment biological fuel cell sensor system for in-situ monitoring of organic pollutant degradation. The system takes the electrical catalytic degradation effect of a seafloor biological fuel cell as a design principle, that is, bacteria in seafloor sediment decompose organic pollutants (such as petroleum pollutants) continuously, electrons are produced, a negative pole is arranged in sea mud, a positive pole is arranged in seawater, the electrons are transferred to the negative pole by attaching to the bacteria and then are transferred to the positive pole through a lead, continuous current is formed, and current and voltage signals of the system are tested; the degradation effect of the petroleum pollutants can be monitored and evaluated in situ according to the correlation of the magnitude of the current and the pollutant system degradation rate. Meanwhile, the system can improve the petroleum degradation efficiency and increase the environment restoration speed, can further be used for performing biomass power generation to drive a small monitoring instrument on the seafloor to operate. The in-situ monitoring technology for seafloor pollutant degradation, accelerated seafloor pollutant degradation and seafloor biological energy generation are combined, and a novel seafloor sediment biological fuel cell sensor monitoring system is developed.

The invention discloses grass pulp capable of promoting fish growth. The grass pulp capable of promoting fish growth is prepared from the following ingredients in parts by weight: 100-200 parts of water hyacinths, 100-200 parts of alternanthera philoxeroides, 100-200 parts of waterweeds, 0.1-1 part of limonitum, 1-3 parts of pine needle powder, 100-200 parts of ryegrass, 50-150 parts of wormwood, 0.2-1 part of morning glory seeds, 50-150 parts of river locust leaves, 2-10 parts of edible salt, 50-150 parts of Chinese milk vetch, 2-4 parts of compound Chinese herbal medicines, and 1-1.5 parts of an attractant. Being beaten into pulp, the grass pulp is good in palatability, and beneficial for rapid growth of fishes; uneaten grass pulp can be utilized by macroplanktons and benthos in the water, as well as converted into nutrients under effects of bacteria so as to promote proliferation of planktons and formation of bacterial flocs; and thus, the grass pulp is capable of providing abundant foods to the fishes, and is greatly improved in utilization rate, reduced in production cost, and increased in economic benefits.

The invention relates to method for suppressing the formation of spirogyra and controlling the increase of biomass of the attached algae, which can be applied to the field of water ecological restoration. The method comprises the following steps: stocking fishes in water in which a submerged plant community structure is built to perform the ecological restoration; launching freshwater mussels within 10 days after the fishes are launched, so that an effect for suppressing the formation of the spirogyra and controlling the increase of biomass of the algae attached to the surface of a submerged plant leaf can be achieved by utilizing an ecological effect of the fishes and the freshwater mussels in the water in the case that the water quality and the underwater light condition are not apparently influenced, so that an lasting and sustainable control effect of the fishes for the algae and spirogyra attached to the plant leaves can be maintained. On the basis of synthesizing the existing biological water purification technologies, the invention achieves the long-term, ecological control of the attached algae biomass to the surface the spirogyra and the plant leaves by stocking fishes and filter-feeding benthos in the system and utilizing the joint action of the fishes and the filter-feeding benthos of the algae biomass.

The invention discloses a spiral flow mineral sucking and selecting device and a method for separating seawater and minerals through the device.The device comprises a novel spiral mineral sucking device and a cyclone separation device connected with the novel spiral mineral sucking device; vortexes are generated by inducing and sucking water flow through a spiral flow guide plate (2) according to the tornado principle to suck up marine minerals through little energy consumption; solid granular minerals with the large weight generate cyclone centrifugal motion and achieve the downward settlement action by utilizing a cyclone separator through the cyclone and settlement action respectively and are finally discharged into a mineral collecting device through a mineral outlet, and therefore sludge and the seawater are together discharged through a sludge outlet of the cyclone separation device.According to the device, the slurry mixed with the minerals can be directly separated at the seabed, then only the minerals are lifted, not only can energy consumption be significantly reduced, but also the influence of marine benthos on marine upper-layer biotic environment can be reduced to the maximum limitation, and therefore submarine mining achieves sustainable development.

The invention discloses a water ecological restoration method of a black and odorous river containing high ammonia nitrogen. The water ecological restoration method comprises the following specific steps: a, constructing an aeration system; b, erecting a submerged plant growth bed; c, equipping a cage culture type benthos net cage. According to the water ecological restoration method of the blackand odorous river containing the high ammonia nitrogen, disclosed by the invention, by adopting a microorganism-plant-aquatic animal combined restoration method, the self-cleaning ability of the blackand odorous river can be strengthened, the effluent quality of the black and odorous river can be increased, and an ecological effect is remarkable.

The disclosure provides an outdoor device for simulating a pond ecosystem comprising a plurality of simulated ponds connected together by pipelines and including an adjusting pool, a plurality of control groups and a plurality of treatment groups with different concentrations; the plurality of control groups and the treatment groups are randomly distributed in the ponds according to a random draw method or a random allocation method, and the adjusting pool is a transfer station for water inlets and outlets of the ponds. According to the device, the plurality of control groups and treatment groups are arranged in a system, achieving a scale of a middle-scale pond ecological simulation system, which can stimulate an actual complex hydrostatic ecological system including a plurality of aquatic macrophytes, algae, zooplankton, benthos and microorganisms, and evaluate the effects of the complex ecological efficiency caused by chemical pollutants entering an actual water body.

The invention provides a marine floating ball wireless positioning signal emitting device and relates to the field of marine resource monitoring. The marine floating ball wireless positioning signal emitting device comprises a floating ball, an acoustic release transponder, a heavy block, a rack, an antenna telescopic mechanism, a telescopic control mechanism, a strong reflective material board and a wireless signal receiving and sending device, wherein the wireless signal receiving and sending device is sealed in the floating ball; the rack is hinged to the floating ball; the antenna telescopic mechanism is movably connected with the rack; the telescopic control mechanism is fixed to the rack; the control mechanism controls the telescopic movement of the antenna telescopic mechanism; the strong reflective material board is fixed to the rack; the heavy block is connected with the rack through the acoustic release transponder. The self position information can be effectively sent out, a searcher can conveniently and rapidly receive the signals and position the device, and the device can be applied to information obtaining of resources such as marine hydrology resources and marine benthos resources.

The invention relates to a multi-stage purification ecological wave-eliminating system for a high stormy wave and low transparency water body area, and particularly relates to the technical field of water environment ecological repairing. The system comprises an ecological submerged dike, the ecological submerged dike comprises a submerged dike body and benthonic organisms, wherein the benthonic organisms are put on the submerged dike body; the submerged dike comprises a first submerged dike and a plurality of second submerged dikes, and the first submerged dike is arranged at a preset distance from the shore side in the length direction along the shore side; the secondary dikes are connected with the first submerged dike at intervals and extended in the lake center direction; submerged plants are included, and the submerged plants are planted at the position between the shore side and the first submerged dike; floating leaved plants are further included, and the floating leaved plantsare planted at the lake gaps between the first submerged dike and the second submerged dikes. According to the system, the system has a wave-eliminating effect, and water bodies can be purified.