CN104370370A

CN104370370A - Riverway sewage purification treatment method

Info

Publication number: CN104370370A
Application number: CN201410652545.0A
Authority: CN
Inventors: 傅珍检
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-17
Filing date: 2014-11-17
Publication date: 2015-02-25
Anticipated expiration: 2034-11-17
Also published as: CN104370370B

Abstract

The invention provides a riverway sewage purification treatment method. The riverway sewage purification treatment method comprises the following steps that 1) a riverway aquatic plant is one or more of watermifoil, loosestrife, hydrocotyle verticillata, nymphoides peltatum, canna indica, scirpus tabernaemontani, arundo donax, pontederia cordata, thalia dealbata and acorus calamus; 2) a riverway aquatic vegetable is one or more of water spinach, Chinese celery, lettuce and watercress; and 3) a riverway aquatic crop is one or more of rice, wheat and rape. With the rapid development of the domestic economy, industry and agriculture wastes are put into the water so as to cause serious pollution to the water ecological environment; moreover, in recent years, calls for improvement on the ecological environment increasingly grows, people are increasingly interested in water pollution, which becomes the most important domestic issue; by an artificial floating island, the water pollution can be improved, water resources are purified, by the method that the ecological environment of the water body is improved by planting a plurality of aquatic plants, the water resources can be effectively purified.

Description

A kind of river sewage purifying treatment method

Technical field

The invention belongs to technical field of waste water processing, particularly, relate to a kind of purifying method of river wastewater.

Background technology

Along with advancing at utmost speed of China's economy, southeast production is fast-developing, also brings the pollution to river and destruction problem.Modern ecological science thinks that ecological riverway construction refers under the prerequisite ensureing river course safety, by building the engineering means such as ecological river bed and ecological revetment, reinvent the river ecosystem of a relative natural stability and health opening, can long term maintenance river course species diversity and the eubiosis, the finally ecotopia of structure people's water harmony.

Current, the main method that river sewage is administered comprises (Fig. 1): 1, physical method, such as, dredge bed mud, machinery except algae, diversion erosion and deposition and water transfer etc.2, chemical process, as coagulating sedimentation, add chemical agent kill algae, add molysite promote phosphorus precipitation, add the methods such as lime denitrogenation.3, the ecological biological process of an ecological biological method mainly comprises river aeration reoxygenation, biomembrance process. biological restoration, land treatment systems method, aquatic plant purification method etc.

Bioremediation technology bioremediation technology refers to and utilizes microorganism and other biological. by the hazardous contaminant matter scene degraded in water body or soil, or be converted into the engineering technology system of nontoxic material.The bioremediation technology administered for river sewage mainly contains two classes.One class adds through cultivating one or more microbial strainss screened directly to polluted river channel water body, and test proves that cOD clearance mouth fourth reaches more than 9096.Another kind of is add bio-stimulant (nutritive substance) to polluted river channel water body. promote " original inhabitants " microbial growth.

Aquatic plant purification method is the effluent purification method of the natural purification function making full use of waterplant.The reed etc. in duckweed, wetland is such as adopted to carry out purifying treatment in certain waters scope.But sanitary sewage enter problems such as can producing foul smell, insect and landscape impact, the problems referred to above to be considered when therefore selecting, as selected the position plantation reed etc. in air port under spring and summer.

Summary of the invention

For the weak point that this area exists, the object of the invention is to propose a kind of river sewage purifying treatment method.

The technical scheme realizing the object of the invention is:

A kind of river sewage purifying treatment method, comprises step:

1) plant river course waterplant, comprising: watermifoil, Spiked Loosestrife, circle coin grass, floating heart, Canna generalis Bailey, Scirpus tabernaemontani, Arundo donax, spend that mullet grass, again power are colored in vain, one or more in calamus.

Plantation river course aquatic vegetable, comprising: mater convolvulus, the four seasons celery, romaine lettuce, one or more in green water cress;

Plantation river course aquatic farm crop, comprising: one or more in paddy rice, wheat, rape

Bank plantation flowers, comprising: Flower of Arabian Jasmine, gardenia jasminoides, peach blossom, balloonflower root, sweet osmanthus, rhododendron, Chinese rose, tree peony, Flower of Japanese Camellia, Milan flower, one or more in chrysanthemum.

Bank kind grass planting is: napier grass, rye grass, Herba Clinopodii Polycephali, oil grass, arabian cron, little water banyan, iron imperial crown, pasture and water, one or more in water orchid.

2) prevention and control of plant diseases, pest control dispenser:

The plant of plantation uses medicament, comprising: copperas solution sprayed 1 time every 4-6 days,

Unslaked lime 15kg every mu, derosal 1kg, every mu is carried out soil disinfection or the control of 50% derosal 0.1-0.125% solution spray, and Trichlorphon and Phosphothion emulsion 0.1% solution, pour after hole is inserted in seedbed with bamboo let.

0.1-0.3% urea 1 is enriched once every 7-15 days, connect and execute 8 times, centre sprays potassium primary phosphate 1 time in every 7 days, sprayed 0.1-0.3% borate 1 time every 8 days, promote that nursery stock is healthy and strong, strengthen winter resistance, the micro-fertile boron of foliage-spray, promote that nursery stock is sturdy, foliage-spray trace element zinc, magnesium, improve plant photosynthesis.

Wherein, adopt plantation, flowers, vegetables, paddy rice equipment be: coil pipe, cystose, floating plate, wireline, PVC manage in vain, one or more in waterproof rope, timber, steel pipe, respectively with cement pillar, timber, steel pipe, connect with waterproof rope, wireline, iron wire etc.

Wherein, described river course is that river or inland river are proper, and large river easily washes out plantation equipment too greatly, and the water surface is wide not to be limit, and so long as not navigating, controls flood, unloading big vast river course can.

Ordinary water level problem: Large Scale Death after many water plant plantings, it is bad that one of them major reason is that water lev el control obtains.During plantation construction operation, due to project not yet completion water body there is no complete retaining, or in low water season in spring, water level is often on the low side.Construction manager it has been generally acknowledged that waterplant can not leave water, and the depth of water is a bit more shallow, and it doesn't matter, often water plant planting is being designed below sea-bottom contour or more than level line.To during retaining or when water level increases to ordinary water level, owing to planting too dark, emergent " is drowned ", and floatingleaved plant leaf can not float the water surface and " suffocated ", and submerged plant crosses weak and " dying of hunger " because of depth of water illumination; Or owing to planting exceed too much from normal water line, emergent is by " drought is dead ".Visible normal water line is the lifeline of waterplant, will give enough attention when practice of construction operation to normal water line.Advise first determining normal water line at the scene with spirit-leveling instrument before plantation construction lofting, the depth of water adaptability when plants configuration using each kind of plant is considered as unalterable quota.

Wave problem: river, river, loke shore abrasion are the natural processes of these water body Favorable evolutions, abrasion alluvial is also the important factor affecting these water bodys life-span.In the succession of nature along with water body, bank slope eases up and sedimentary soil, for the existence procreation of waterplant creates condition, the growth of plant slow down the erosion of water bank, the resistance of succession, but the increasing substantially of organic content in the rotten deposition of plant materials, water, enrich water nutrition, improve aqueous bio amount, say that the succession of waterplant to whole water body is contributive from this angle.

People are slow down the erosion of wave to water front in a vital role of water body bank planting aquatic plants, ensure normal water body environment.Waterplant naturally become solid bank and abrasion this to the focus of contradiction.

In general scope is little for the little water system of business building district and public lawn inside, navigation ban, sluggish flow, water front is washed away, corrode less, little to the plantation growth effect of waterplant.The water bodys such as rivers and lakes bring very large difficulty because stormy waves, ship shape ripple or current wash away rapidly to the plantation of waterplant, existence.As stormy waves and ship shape ripple will directly or be reflected by embankment, directly pat consumingly or shake plant materials, thus make that plant leaf is broken, stem is fractureed, even plant materials is uprooped, even growth affect plant causes its death.Therefore will force investigation during plantation, take when planting disappear accordingly wave, bank revetment reinforcement technical measures according to wave feature, after hydrophyte restoration, emergent can play certain wave damping effect, and its root system also can play the solid bank effect of certain bank protection.

The solid bank of the wave that disappears can adopt multi-form according to different water front and wave intensity etc.For open lake, the water front that weather shore, wave are high can consider that use disappears unrestrained alms bowl, but disappear unrestrained alms bowl offshore back gauge should within 150 meters.Little for lake surface, the little water front of wave can adopt deal pile, mao bamboon stake, and they had not only disappeared wave but also bank admittedly, were good selections.

Planting soil problem: planting soil is the nutrient source that waterplant depends on for existence except floating plant, is again the basis supporting plant materials concerning emergent.The requirement of waterplant to planting soil meets above-mentioned two functions to determine.In general the mud of former water body is ideal planting soil, silt can be filled out in conjunction with the desilting of periphery rivers and lakes to the artificial wetland of new excavation, as mud is difficult to purchase, at the veneer of soil in southern used water rice field, in the north as the higher dry farming layer soil of fertility also can be selected in lack of water rice field.Sedimentation, the sclerosis of certain hour will be given after the planting soil backfill heavy to viscosity.To the wave is high and the water front of hard dykes and dams it should be noted that backfill planting soil very easily fallen by wave erosion.In original water body, during planting aquatic plants, also to consider the growth problem of bed mud, before plantation, bed mud situation must be detected in water.The bed mud on weather shore, hard dykes and dams bank is easily etched, and often lack the growth of soft bed mud, this is totally unfavorable to planting aquatic plants, should adopt the unrestrained measure that disappears in advance, reduces wave, and then backfills planting soil, could plant.

Artificial floating bed various functions is introduced:

Along with people's life development. the living environment for the mankind causes very large impact.Just can find out from the water pollution situation be seen everywhere.In order to improve this problem, manually have developed artificial floating bed.Along with the exploitation of artificial floating bed, the effect that artificial floating bed plays in water body purification. make it really become a multi-functional practical technique.Which does artificial floating bed function have on earth?

One, water body treating instant effect

Artificial floating bed absorbs and organic pollutant in degradation water in water body, can repair water body fast, reach the object purified water.And artificial floating bed price is also very reasonable. be the engineering in a less investment, Shan of taking effect.

Two, coenocorrelation is improved

Artificial floating bed is the carrier of microbe survival procreation.Except the organism in water can be absorbed, for carrying sufficient oxygen in water, a space of multiplying of having a rest can also be provided for various biology.Artificial floating bed makes water body repaired, and defines a good natural ecological environment.

Three, environmental quality is improved

Artificial floating bed, except administering the effect had clearly to water pollution, also possesses environmental landscape function simultaneously.Artificial floating bed not only can be applied in reparation polluted-water, and pollution treatment is antifouling. can also living environment be beautified.Create a beautiful urban look, the effect of getting twice the result with half the effort can be reached.

The effect that artificial floating bed plays in water remediation and purification and environmental landscape effect. along with generally applying, obtain increasing accreditation.And artificial floating bed development prospect is considerable, it is very practical a kind of engineering.

It is water pollution control type comparatively common at present that biological floating island improves water body environment, first this kind of water pollution control mode rise in American-European state tomb, but in recent years this situation of China be also start fashionable gradually, we can see in a lot of places it being occurred that biological floating island improves the situation of water body environment, especially for the transformation of some large-size lake, this and mode seem very effective.

In a line city coin of China, water pollution control often needs to relate to a lot of problems, common administration way easily causes intermediate water body pollution, so increasing people begins through this with brand-new mode to carry out the improvement of water body environment, and with regard to present case, it is still very good that this improves effect, employs this kind of mode and carry out pollution control of water and often can reach good regulation effect exactly.It is worth mentioning that, although it is all well and good to be that current biological floating island improves water body environment effect, but the real regulation effect wanting to have reached, still real-time observation is needed, if be find in use to have occurred that some special situations also should report in time, water pollutions could be administered fast like this.

The inventive method has the following advantages:

Along with developing rapidly of domestic economy, the agriculture the like waste of industry drops in water, serious pollution is caused to China's water ecological setting, and people are more next interesting high for the cry of improving the ecological environment in recent years, people, for the more next interesting concern of water pollutions, become domestic matter of utmost importance artificial floating island and can improve water pollutions, resource of purifying waste water, adopt a large amount of planting aquatic plants to improve the method for water ecological setting, resource of can effectively purifying waste water.

The circulation of artificial floating island to ecosystem matter and energy serves regulating and controlling effect, effectively can improve the situation of water pollutions.Artificial floating island utilizes floating capacity planting aquatic plants, improves water ecological setting by the physical environment rule of waterplant, and artificial floating island itself can also fix the suspended substance in water simultaneously, reaches potential detoxification.Artificial floating island can not only be improved the ecological environment, can also be used for carrying out ecotoxicology assessment to aquatic pollution and enter that biologic chain biology is backward heaped, retouching and transhipment, have very important implication to the maintenance of plant ecological and the safe and comfortable aspect of people and animals.In water, contaminated degree is different, so just needs different artificial floating islands to improve.Resolve through expert, the waterplant such as lotus, reed can root out to different degree chlorine, the phosphorus of contaminated water body, heavy metal and organic pollutant, and obtains in Sewage disposal and use widely.So different artificial floating islands can be selected to improve different polluted water body.Artificial floating island can improve water ecological setting greatly, allows people tie up to this intimately with natural closing.Water pollutions situation is quite serious at home, believes there has been the improvement that artificial floating island can be very fast.

Artificial floating island is a kind of novel method improving water ecological setting, can be good at improving the ecological environment, and through use for many years, has won accreditation and the favor of broad masses.Artificial floating island can not only be improved the ecological environment, and also has a lot of function simultaneously, below let us understand lower artificial floating island all have those effect.

First artificial floating island has good purification of water quality function. it because of for the purpose of and the difference of object and different. mainly have effect to the water quality of eutrophication.Its purification mechanism with, the purification of water quality mechanism of the littoral vegetation zone of lakes and marhshes has closely similar place.Secondly artificial floating island is the best sound places of fish. it have cover, the effect such as eddy current, feed becomes the good condition that fish are lived.Because raw son has adsorption for mud, can purify water again, many people fasten some ropes below artificial floating island simultaneously, and the floating being used for improving the fish such as carp is laid eggs the structure of bed.In addition, artificial floating island is also the best spaces of living of birds, investigator finds the nest having birds on some artificial floating islands, and Many times people are in order to attract nest on certain birds one island, and the custom of nesting according to birds specially carries out special layout on artificial floating island.Last artificial floating island also has wave absorption function.

Accompanying drawing explanation

Fig. 1 is river regulation method in prior art.

Fig. 2 is artificial swamp anaerobic biological pool model figure,

Fig. 3: river course aquatic plant effluent purification treatment orthographic plan,

Fig. 4 river sewage treatment station mould shape is schemed.

Embodiment

Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.

Unless stated otherwise, the technology used in the present invention means are the technique means of this area routine.

The place of plantation is positioned at Ba Quhe village, Ebony Hill town of Changsha Wangcheng district, and the pollutent index before detecting in water is as follows:

1, suspended substance (SS), detected result average is 191mg/L;

2, five-day BOD (BOD ₅) mg/L detected result average is 108,

3, chemical oxygen demand (COD) (CODcr) mg/L detected result average is 219,

4, total phosphorus mg/L detected result average is 35.6,

5, colourity mg/L detected result average is 8,

6, ammonia nitrogen mg/L detected result average is 8.76.

Embodiment 1

Flow process is see Fig. 2, Fig. 3, Fig. 4.River sewage purifying treatment method, comprises step:

1) the river course waterplant planted is: watermifoil, Spiked Loosestrife, circle coin grass, floating heart, Canna generalis Bailey, Scirpus tabernaemontani, Arundo donax, spend that mullet grass, again power are colored, calamus in vain.

Plantation river course aquatic vegetable be: mater convolvulus, the four seasons celery, romaine lettuce, green water cress

The aquatic farm crop in river course of plantation are: paddy rice, wheat, rape

The flowers of bank plantation are: Flower of Arabian Jasmine, gardenia jasminoides, peach blossom, balloonflower root, sweet osmanthus, rhododendron, Chinese rose, tree peony, Flower of Japanese Camellia, Milan flower, chrysanthemum.

The grass of bank plantation is: napier grass, rye grass, Herba Clinopodii Polycephali, oil grass, arabian cron, little water banyan, iron imperial crown, pasture and water, water orchid.

2) prevention and control of plant diseases, pest control dispenser:

Copperas solution sprayed 1 time every 4-6 days.

The equipment of employing plantation, flowers, vegetables, paddy rice is: coil pipe, cystose, wireline, waterproof rope, timber, steel pipe, with cement pillar, timber, steel pipe, connect with waterproof rope, wireline, iron wire.

River course is inland river.Large river easily washes out plantation equipment too greatly, and the water surface is wide not to be limit, and so long as not navigating, controls flood, unloading big vast river course can.

The purification result of water pollutant reduces the Pollutant levels of eastern Milky Way river water body significantly through the improvement reparation continued, and eastern Milky Way water body indices significantly takes a turn for the better, and DO returns to average more than 3.5mg/L by the 0.16mg/L before administering; COD is reduced to average about 20mg/L reduction rate by > 204mg/L and reaches 90%; BOD5 is reduced to average 8mg/L reduction rate by > 61.2mg/L and reaches more than 92%; NH ₃-N is reduced to average about 5mg/L reduction rate by > 22.7mg/L and reaches 80%; TP is reduced to average below 1mg/L reduction rate by > 8.52mg/L and reaches 92%.The repairing effect of bed mud is quite obvious, and originally dense black smelly bed mud has been repaired as present yellow-gray odorless.Water ecology steps into benign cycle just gradually, and aqueous bio diversity obviously increases, and occurs protozoon, and generate a large amount of wild fish in water, biologic chain is just progressively recovered.The ecotope in river course is restored substantially.Reach the improvement re-set target to this river course of both sides' agreement in improvement contract.

Administer the apparent and water-quality guideline date comprision summary table in river course before and after repairing:

Table 1: unit: mg/L

Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.

Claims

1. a river sewage purifying treatment method, is characterized in that, comprises step:

1) river course planting aquatic plants, comprising: watermifoil, Spiked Loosestrife, circle coin grass, floating heart, Canna generalis Bailey, Scirpus tabernaemontani, Arundo donax, spend that mullet grass, again power are colored in vain, one or more in calamus;

River course plantation aquatic vegetable, comprising: mater convolvulus, the four seasons celery, romaine lettuce, one or more in green water cress;

Aquatic farm crop are planted in river course, comprising: one or more in paddy rice, wheat, rape;

Bank plantation flowers, comprising: Flower of Arabian Jasmine, gardenia jasminoides, peach blossom, balloonflower root, sweet osmanthus, rhododendron, Chinese rose, tree peony, Flower of Japanese Camellia, Milan flower, one or more in chrysanthemum;

Bank kind grass planting, comprising: napier grass, rye grass, Herba Clinopodii Polycephali, oil grass, arabian cron, little water banyan, iron imperial crown, pasture and water, one or more in water orchid;

2) prevention and control of plant diseases, pest control dispenser:

The plant of plantation uses medicament, comprising: copperas solution sprayed 1 time every 4-6 days;

Unslaked lime 15kg every mu, derosal 1kg, every mu is carried out soil disinfection or the control of 50% derosal 0.1-0.125% solution spray, and Trichlorphon and Phosphothion emulsion 0.1% solution, pour after hole is inserted in seedbed with bamboo let;

2. the method according to claim l, it is characterized in that, adopt plantation, flowers, vegetables, paddy rice equipment be: coil pipe, cystose, floating plate, wireline, PVC manage in vain, one or more in waterproof rope, timber, steel pipe, respectively with cement pillar, timber, steel pipe, connect with waterproof rope, wireline, iron wire etc.

3. the method according to claim l, is characterized in that, described river course is that river or inland river are proper, and large river easily washes out plantation equipment too greatly, and the water surface is wide not to be limit, and so long as not navigating, controls flood, unloading big vast river course can.