CN113508741A

CN113508741A - Method for cultivating planting plants by using organic wastewater

Info

Publication number: CN113508741A
Application number: CN202110434638.6A
Authority: CN
Inventors: 赵德旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-10-19
Anticipated expiration: 2041-04-22
Also published as: CN113508741B

Abstract

The application provides a method for cultivating planting plants by using organic wastewater, which comprises the following steps: obtaining original organic wastewater, detecting the composition in the original organic wastewater, and recording the composition as A_i(i ═ 1 … n); detecting A in original organic wastewater_iContent P of₁(A_i) (i ═ 1 … n); obtaining rainwater and detecting A contained in rainwater_iContent P of₂(A_i) (i ═ 1 … n); obtaining soil, and planting plants on the soil; detection of A contained in soil_iContent P of₃(A_i) (i ═ 1 … n); obtaining plants corresponding to each component A according to the plant species and growth stage_iTolerance limit value P of_L(A_i) (i ═ 1 … n); mixing original organic wastewater and rainwater in a certain proportion to obtain a pouring liquid; irrigating the soil with the irrigation liquid to obtain A contained in the irrigated soil_iEach corresponding to a tolerance limit P of less than or equal to_L(A_i) (i ═ 1 … n). By the method, the organic wastewater provides growth nutrients for plants, and zero discharge of various substances in the original organic wastewater can be realized.

Description

Method for cultivating planting plants by using organic wastewater

Technical Field

The disclosure generally relates to the technical field of water pollutant control, and particularly relates to a method for cultivating plants by using organic wastewater.

Background

Domestic waste, kitchen garbage etc. can produce organic waste water at innocent treatment's in-process, and its composition is comparatively complicated, mainly comes from the degradation of animal, plant and other resolvable material, mainly includes: chemical oxygen demand, biochemical oxygen demand, ammonia nitrogen, total phosphorus, faecal coliform bacteria, salt, mercury, lead, chromium, arsenic and the like.

At present, the organic wastewater is treated mainly by system circulating filtration and is discharged after reaching the discharge standard; in the process, large-scale circulating equipment is required for supporting, the circulating treatment time is long, the cost is high, and meanwhile, nutrient resources in the organic wastewater are wasted in the treatment and discharge processes.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies in the prior art, it is desirable to provide a method for cultivating plants by using organic wastewater, which realizes zero discharge of substances in the organic wastewater, is low in cost, and facilitates recycling of nutrient resources in the organic wastewater.

The application provides a method for cultivating planting plants by using organic wastewater, which comprises the following steps:

obtaining original organic wastewater, detecting the composition in the original organic wastewater, and recording the composition as A_i(i ═ 1 … n); detecting A in the original organic wastewater_iContent P of₁(A_i)(i＝1…n)；

Obtaining rainwater, detecting A contained in the rainwater_iContent P of₂(A_i)(i＝1…n)；

Obtaining soil, and planting plants on the soil; detecting A contained in the soil_iContent P of₃(A_i)(i＝1…n)；

Obtaining the plant corresponding to each of the composition A according to the kind and growth stage of the plant_iTolerance limit value P of_L(A_i)(i＝1…n)；

Mixing the original organic wastewater and the rainwater according to a certain proportion to obtain a pouring liquid; irrigating the soil with the irrigation liquid to obtain A contained in the irrigated soil_iEach corresponding to a value less than or equal to the tolerance limit P_L(A_i)(i＝1…n)。

According to the technical scheme provided by the embodiment of the application, the method for configuring the pouring liquid comprises the following steps:

obtaining a suitable soil moisture content for said plantW_yDetecting the water content w of the soil;

calculating each component A_iCorresponding original organic wastewater-rainwater mixing ratio K_i(i＝1…n)；

K_i＝V₁/V₂；

Obtaining K_iThe smallest positive value of (i ═ 1 … n), denoted as K_min；

Mixing the original organic wastewater and rainwater with K or less_minMixing the raw materials in proportion to form the pouring liquid; if said K is_i(i-1 … n) is negative, the original organic waste water is used as irrigation liquid to irrigate the soil.

According to the technical scheme provided by the embodiment of the application, the specific method for planting the plants on the soil comprises the following steps:

dividing a plurality of planting blocks in a plant planting area, performing anti-seepage treatment on the bottom and the side wall of each planting block through a PE film, and paving the soil in the planting blocks.

According to the technical scheme provided by the embodiment of the application, the specific method for irrigating the soil by the irrigation liquid comprises the following steps:

obtaining the natural density P of the soil;

calculating irrigation quality M: v is V_m*P*(W_y-w)，V_mIs the volume of the planting area;

and irrigating the planting area by using irrigation liquid with the irrigation quality M.

According to the technical scheme provided by the embodiment of the application, a rain-proof shed is arranged on the planting area; the rain-proof shed comprises a shed body arranged on the planting area and rain-proof cloth arranged on the shed body; the canopy body top is arc support body structure, canopy body top one side level is equipped with the pivot, the one end of waterproof cloth with pivot lateral wall fixed connection, the haulage rope is installed to the other end of waterproof cloth.

According to the technical scheme provided by the embodiment of the application, a first motor for driving the rotating shaft to rotate is mounted on the shed body; a rolling device is arranged on the side wall of the shed body, which is far away from the rotating shaft; the winding and lifting device is connected with one end, far away from the waterproof cloth, of the traction rope and is used for driving the traction rope to lift.

According to the technical scheme provided by the embodiment of the application, a limiting frame is arranged above the waterproof cloth and is fixedly connected with the top of the shed body; and a plurality of penetrating rods are arranged in the rainproof cloth and in a direction parallel to the rotating shaft.

According to the technical scheme provided by the embodiment of the application, the composition A_iComprises at least one of ammonia nitrogen, total phosphorus, faecal coliform, salt, potassium, chlorine, mercury, lead, chromium and arsenic.

According to the technical scheme provided by the embodiment of the application, before the original organic wastewater is detected, the method further comprises the following steps:

setting a first storage pool, setting an impermeable layer on the first storage pool, and conveying the original organic wastewater into the first storage pool.

According to the technical scheme provided by the embodiment of the application, before the pouring liquid is configured, the method further comprises the following steps:

and setting a third storage pool, installing a pipeline for conveying the irrigation liquid to the plants on the third storage pool, and setting a flow meter in the pipeline.

The beneficial effect of this application lies in: based on the technical method provided by the application, P is detected₁(A_i)、P₂(A_i)、P₃(A_i)、P_L(A_i) The corresponding numerical value can quantify the mixing proportion of the organic wastewater and the rainwater, and after the soil is irrigated by the irrigation liquid mixed according to a certain proportion, all the components A in the soil_iAre all less than or equal to the tolerance limit P_L(A_i) (ii) a By the method, the organic wastewater can provide growth nutrients for the plants and can realize the purposeZero emission of each substance in the original organic wastewater.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a flow chart of a method for cultivating a plant by using organic wastewater provided by the present application;

FIG. 2 is a schematic structural view of a waterproof shed installed on a planting area when plants are planted in the step S300 shown in FIG. 1;

FIG. 3 is a schematic top view of the shelter of FIG. 2;

fig. 4 is a schematic structural diagram of the waterproof cloth 2 shown in fig. 3 after being recovered.

Reference numbers in the figures:

1. a shed body; 2. waterproof cloth; 3. a rotating shaft; 4. a hauling rope; 5. a first motor; 6. a limiting frame; 7. penetrating the rod; 8. a draw bar; 9. a second motor; 10. a winding rod.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Please refer to fig. 1, which is a method for cultivating a plant with organic wastewater provided by the present application, comprising the following steps:

Mixing the original organic wastewater and the rainwater according to a certain proportion to obtain irrigation liquid, and irrigating the soil with the irrigation liquid to enable A contained in the irrigated soil to be A_iEach corresponding to a value less than or equal to the tolerance limit P_L(A_i)(i＝1…n)。

In particular, P₁(A_i) In units of kg/L, P₂(A_i) In units of kg/L, P_L(A_i) And P₃(A_i) Are all percentages.

Specifically, the pouring liquid is according to the formula P₁(A_i)、P₂(A_i)、P₃(A_i) And tolerance limit P_L(A_i) Obtaining the mixing ratio of the original organic wastewater and the rainwater, so that after the mixed irrigation liquid irrigates the soil, the A contained in the soil_iEach corresponding to a value less than or equal to the tolerance limit P_L(A_i)(i＝1…n)。

In particular, the plants are for each constituent A_iTolerance limit value P of_L(A_i) Controlled by the type and growth stage of the plant, the different growth stages of different plants correspond to the components A_iTolerance limit value P of_L(A_i) Also different; for example, Table-1 is the tolerance limit for part of the plants at emergence, where A is included for reference₁Is nitrogen, A₂Is salt form, A₃Is chromium.

P_L(A_i)	P_L(A₁)	P_L(A₂)	P_L(A₃)
				Peanut (emergence period)	0.1％	0.15％	0.015％
Corn (emergence stage)	0.1％	0.2％	0.015％
				EYEJIAOCAO (emergence period)	0.1％	6.5％	0.03％

TABLE-1

The working principle is as follows: by detecting the components of the original organic wastewater and the content P of each component₁(A_i) Detecting A contained in rainwater_iContent P of₂(A_i) Detecting A contained in the soil_iContent P of₃(A_i) Meanwhile, the tolerance limit value P corresponding to each component is obtained according to the type and the growth stage of the plant_L(A_i) (ii) a By P₁(A_i)、P₂(A_i)、P₃(A_i)、P_L(A_i) Of (a) so as to be originalThe mixing proportion of the organic wastewater and the rainwater can be quantized, and the soil A can be irrigated by the irrigating liquid mixed according to a certain proportion_iIs less than or equal to the tolerance limit P_L(A_i) (ii) a By the method, the zero emission of all substances in the original organic wastewater can be realized while the growth nutrients are provided for the plants.

According to the method for cultivating and planting the plants by using the organic wastewater, on one hand, partial substances in the organic wastewater can provide nutrient resources for the plants on the premise of the tolerance limit range of the plants, and waste materials are changed into valuable materials; on the other hand, zero emission of all substances in the organic wastewater can be realized, and the treatment cost is saved.

Preferably, the method for preparing the pouring liquid specifically comprises the following steps:

obtaining the appropriate soil moisture content W of the plant_yDetecting the water content w of the soil;

K_i＝V₁/V₂；

Because of having:

V₁*P₁(A_i)+V₂*P₂(A_i)＝(P_L(A_i)-P₃(A_i))*V_m*P； ①

M＝V_m*P*(W_y-w)＝(V₁+V₂)*ρ； ②

wherein, V_mThe volume of the soil, P is the natural density of the soil;

therefore, the following can be derived from (i) ():

wherein, as can be known by those skilled in the art, ρ is the density of the pouring liquid, the density ρ of the pouring liquid is similar to the density of water, and ρ is 0.99-1.01, so ρ in the above formula can be taken as a constant and is taken as 1.

Among them, those skilled in the art will know that rainwater contains A_iThe content of (A) is low and almost approaches to 0; a contained in soil not simultaneously irrigated with the irrigation liquid_iShould be below the tolerance limit of the plant; therefore, the formula shows that K is obtained in the calculation process_i＝V₁/V₂When the value is negative, the value is due to A contained in the original organic wastewater_iToo low of (C) results in V₁Is higher due to V₁+V₂Is constant, thus resulting in V₂The case of negative values;

therefore, in order to satisfy the requirement of irrigating the irrigation liquid, each component A contained in the soil_iIs lower than the tolerance limit of said plant by obtaining K_iThe smallest positive value of (i ═ 1 … n), denoted as K_min(ii) a Mixing the original organic wastewater and rainwater with K or less_minMixing the raw materials in proportion to form the pouring liquid; when said K is_i(i-1 … n) is negative, the original organic waste water is used as irrigation liquid to irrigate the soil.

In order to facilitate the explanation of the technical principle of the application, taking a certain original organic wastewater as an example, peanuts in the seedling stage are simultaneously selected as planting plants, and the working principle is as follows:

s100, obtaining the original organic wastewater, and detecting the components and the content of each component in the original organic wastewater, wherein the detection results are shown in a table-2:

TABLE-2

S200: obtaining rainwater, detecting A contained in the rainwater_iContent P of₂(A_i) The detection result of the rainwater is shown in table-3:

P₂(A_i)	P₂(A₁)	P₂(A₂)	P₂(A₃)
				the result of the detection	0	0	0

TABLE-3

S300: obtaining soil, and planting plants on the soil; detecting A contained in the soil_iContent P of₃(A_i) The soil test results are shown in table-4:

P₃(A_i)	P₃(A₁)	P₃(A₂)	P₃(A₃)
				the result of the detection	0.022％	0.1％	0

TABLE-4

S400, obtaining each component A of the plant (peanut in seedling stage) corresponding to each component A according to the species and the growth stage of the plant_iTolerance limit value P of_L(A_i) As shown in Table-5:

P_L(A_i)	P_L(A₁)	P_L(A₂)	P_L(A₃)
				limit value	0.1％	0.15％	0.015％

TABLE-5

S500: mixing the original organic wastewater and the rainwater according to a certain proportion to obtain a pouring liquid; irrigating the soil with the irrigation liquid to obtain A contained in the irrigated soil_iEach corresponding to a value less than or equal to the tolerance limit P_L(A_i). The steps specifically comprise the following:

s501: obtaining a suitable moisture content W of said plant_yThe following table-6 shows the proper water content W of the partial plant_yFor reference; meanwhile, the following table shows that the proper moisture content of the peanuts (in the seedling stage) is 18%:

plant and method for producing the same	Peanut (emergence period)	Corn (emergence stage)	EYEJIAOCAO (emergence period)
				W_y	18％	18％	40％

TABLE-6

The moisture content w of the soil is measured, for example, w has a value of 12%.

S502: calculating each component A_iCorresponding original organic wastewater-rainwater mixing ratio K_i；

K_i＝V₁/V₂；

Calculating K_iThe results are shown in Table-7:

K_i	K₁	K₂	K₃
				ratio of	0.928	0.898	-1

TABLE-7

S503: obtaining K_iThe smallest positive value of (i ═ 1 … n), denoted as K_min；

K_min＝0.898；

S504: mixing the original organic wastewater with rainwater in a ratio of less than or equal to 0.898:1 to form the irrigation liquid.

The irrigation liquid mixed according to the proportion can meet the tolerance limit requirements of plants on various components, the organic wastewater is used for planting the plants, the nutrient resources are saved, and the zero emission of various substances in the organic wastewater is realized under the action of the plants.

Preferably, the specific method for planting the plants on the soil comprises the following steps:

Specifically, the length of the plant planting area is 50 meters, and the width of the plant planting area is 8 meters; the thickness of the PE film is 1.0 mm; planting soil with the thickness of 20 cm is paved in each planting block.

Preferably, the concrete method for irrigating the soil with the irrigation liquid comprises the following steps:

obtaining the natural density P of the soil;

In particular, V_mIs the volume of the planting area; for convenience of explanation of the technical scheme provided by the application, taking a certain planting area as an example, the length of the planting area is 50m, the width of the planting area is 8m, and the soil thickness is 0.2 m; the water content W of the soil was 12% according to the above measurement, and the suitable soil water content W of the plant was_yAccording to the table-6, the proper soil water content of the peanuts (in the seedling emergence stage) is 18 percent, and the specific process is as follows:

obtaining the natural density P of said soil, e.g. P is 1500kg/m³；

Calculating irrigation quality M: m50 × 8.2 × 1500 ═ 0.18-0.12 ═ 7200 (kg);

and irrigating the planting area by using the irrigation liquid with the irrigation quality of 7200 kg.

Preferably, as shown in fig. 2 and 3, the rain-proof shed comprises a shed body 1 arranged on the planting area and a rain-proof cloth 2 arranged on the shed body 1; the canopy body 1 top is arc support body structure, 1 top one side level of the canopy body is equipped with pivot 3, the one end of waterproof cloth 2 with 3 lateral walls fixed connection of pivot, haulage rope 4 is installed to the other end of waterproof cloth 2. Through setting up weather enclosure for avoid the irrigation liquid to flow into other regions along with external environment's rainwater.

Specifically, one side of the top of the shed body 1 is provided with an installation seat, and the rotating shaft 3 is installed in the installation seat; the rotating shaft 3 is horizontally arranged along the length direction of the shed body 1.

Specifically, the waterproof cloth 2 is far away from 3 one side of pivot is installed the traction lever 8, the traction lever 8 is along being on a parallel with 3 direction settings of pivot, traction lever 8 with haulage rope 4 fixed connection. Through setting up the traction lever 8 for the waterproof cloth 2 becomes one side atress by the single-point atress, helps waterproof cloth 2 open and shut the removal smoothly.

As shown in fig. 3, when the rainproof cloth 2 needs to be covered on the top of the canopy body 1, the rainproof cloth 2 can be pulled by pulling the pulling rope 4 to move along the side away from the rotating shaft 3, so that the rainproof cloth 2 completely covers the top of the canopy body 1;

as shown in fig. 4, when the rain-proof cloth 2 needs to be recovered to one side of the canopy body 1, the rotating shaft 3 can be rotated, so that the rain-proof cloth 2 is continuously wound on the rotating shaft 3.

Preferably, a first motor 5 for driving the rotating shaft 3 to rotate is mounted on the shed body 1; a rolling device is arranged on the side wall of the shed body 1 far away from the rotating shaft 3; the winding and lifting device is connected with one end, far away from the rainproof cloth 2, of the traction rope 4 and is used for driving the traction rope 4 to lift.

Specifically, first motor 5 is installed on canopy body 1 one side lateral wall, first motor 5's drive shaft with 3 axial fixed connection of pivot. Through setting up first motor 5 has replaced manual drive by motor drive, has improved work efficiency.

Specifically, the winding device comprises a second motor 9 arranged on the side wall of the shed body 1 and a winding rod 10 axially and fixedly connected with a driving shaft of the second motor 9; the traction rope 4 is fixedly connected with the side wall of the winding rod 10;

the second motor 9 is installed on the side wall of the shed body 1, the winding rod 10 is rotated by starting the second motor 9, and then the traction rope 4 can be driven to be continuously wound on the winding rod 10, so that the rainproof cloth 2 can be driven to move towards one side far away from the rotating shaft 3.

Preferably, a limiting frame 6 is arranged above the waterproof cloth 2, and the limiting frame 6 is fixedly connected with the top of the shed body 1; a plurality of penetrating rods 7 are arranged in the rainproof cloth 2 and in a direction parallel to the rotating shaft 3.

Specifically, through setting up spacing 6 makes spacing 6 with form the interval space between 1 tops of the canopy body, it is right waterproof cloth 2 has played spacing effect.

Specifically, it is right to run through pole 7 waterproof cloth 2 has played the effect that the tiling was supported, also is favorable to waterproof cloth 2 to open and shut the removal smoothly. The number of the penetrating rods 7 is one, two or more; for example, as shown in fig. 3, the penetrating rods 7 are provided in three numbers.

Among them, the constituent component A is preferable_iComprises at least one of ammonia nitrogen, total phosphorus, faecal coliform, salt, potassium, chlorine, mercury, lead, chromium and arsenic.

Wherein, as the optimization, before detecting the original organic wastewater, the method further comprises the following steps:

Preferably, before the pouring liquid is prepared, the method further comprises the following steps:

Preferably, before the pouring liquid is prepared, the method further comprises the following steps: and setting a second storage pool, and collecting rainwater into the second storage pool.

Specifically, pipelines are arranged between the first storage pool and the third storage pool and between the second storage pool and the second storage pool, and a valve and a flowmeter are arranged in the pipelines, so that rainwater and original organic wastewater can be mixed in the third storage pool in proportion.

Specifically, in the process of cultivating plants by using organic wastewater, the contents of various substances in the planting soil need to be periodically detected, and the planting soil needs to be replaced if necessary.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A method for cultivating and planting plants by using organic wastewater is characterized in that: the method comprises the following steps:

2. The method for cultivating plants by using organic wastewater as claimed in claim 1, wherein the method comprises the following steps: the method for preparing the pouring liquid comprises the following steps:

K_i＝V₁/V₂；

3. The method for cultivating the plant by using the organic wastewater as claimed in claim 2, wherein the method comprises the following steps: the specific method for planting the plants on the soil comprises the following steps:

4. The method for cultivating plants by using organic wastewater as claimed in claim 3, wherein the method comprises the following steps: the concrete method for irrigating the soil by the irrigation liquid comprises the following steps:

obtaining the natural density P of the soil;

calculating irrigation quality M: m ═ V_m*P*(W_y-w)，V_mIs the volume of the planting area;

5. The method for cultivating plants by using organic wastewater as claimed in claim 3, wherein the method comprises the following steps: a rain-proof shed is arranged on the planting area; the rainproof shed comprises a shed body (1) arranged on the planting area and rainproof cloth (2) arranged on the shed body (1); the canopy body (1) top is arc support body structure, canopy body (1) top one side level is equipped with pivot (3), the one end of waterproof cloth (2) with pivot (3) lateral wall fixed connection, haulage rope (4) are installed to the other end of waterproof cloth (2).

6. The method for cultivating plants by using organic wastewater as claimed in claim 5, wherein the method comprises the following steps: a first motor (5) for driving the rotating shaft (3) to rotate is mounted on the shed body (1); a rolling device is arranged on the side wall of one side of the shed body (1) far away from the rotating shaft (3); the winding and lifting device is connected with one end, far away from the rainproof cloth (2), of the traction rope (4) and used for driving the traction rope (4) to lift.

7. The method for cultivating plants by using organic wastewater as claimed in claim 5, wherein the method comprises the following steps: a limiting frame (6) is arranged above the waterproof cloth (2), and the limiting frame (6) is fixedly connected with the top of the shed body (1); a plurality of penetrating rods (7) are arranged in the rainproof cloth (2) and in a direction parallel to the rotating shaft (3).

8. The method for cultivating plants by using organic wastewater as claimed in claim 1, wherein the method comprises the following steps: the component A_iComprises at least one of ammonia nitrogen, total phosphorus, faecal coliform, salt, potassium, chlorine, mercury, lead, chromium and arsenic.

9. A method for cultivating a plant using organic wastewater as claimed in any one of claims 1 to 8, wherein: before detecting the original organic wastewater, the method also comprises the following steps:

10. A method for cultivating a plant using organic wastewater as claimed in any one of claims 1 to 8, wherein: before the pouring liquid is prepared, the method also comprises the following steps: