JPH1071394A - Sterilizer for irrigation water or splinkler water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive a direct use as irrigation water for a farm or the like by sterilizing pathogenic bacteria contained in water such as a stream. SOLUTION: The sterilizer for irrigation water or splinkler water comprises a process of pumping up water, conducting a part of the water into a packed tube 12 filled with a chlorine-based solid agent, and injecting effective chlorine water with the dissolved agent into a main conduit before the inlet of the pump. Since the pathogenic bacteria derived from the water can be destroyed instantaneously by using the sterilizer, the water such as a stream can be used directly as irrigation water. The effective chlorine concentration for the use is in the range of 5-50ppm, preferably 10-20ppm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a sterilizer used for watering irrigation water or crops or turf.

[0002]

2. Description of the Related Art When watering a field such as ginger or ginger, the water may contain rhizome rot bacteria and the like.
It needs to be sterilized. As a method of sterilization, (1) a method of storing water in a reservoir or the like, adding a chlorine-based agent such as calcium hypochlorite therein, and sterilizing the water, and (2) pumping up with a pump as shown in FIG. A method of mixing and sterilizing underground water or the like with an aqueous solution of sodium hypochlorite or the like is known. However, the former requires places for storing water everywhere, such as reservoirs, and the latter requires a storage tank for aqueous sodium hypochlorite solution. Since it is unstable at high temperatures in the summer, it decomposes during storage and lowers the effective chlorine concentration.

[0003]

Means for Solving the Problems The present inventors have intensively studied a method for sterilizing irrigation by a simple method that can directly use river water and the like, and by using a certain type of sterilizer, It has been found that the present invention can be achieved, and the present invention has been completed. That is, the present invention introduces water taken from the water intake into the water intake of the pump, and introduces a part of the water discharged from the water supply of the pump into a filling cylinder filled with a chlorine-based chemical, whereby the chemical is dissolved. A sterilizer for irrigation water or water sprinkling, characterized in that available chlorine water is injected into a main pipe in front of a water suction port of a pump.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION In a sterilizer according to the present invention, the end of the inlet side is connected to a water source (intake) such as a river or a reservoir, and the end of the main pipe is connected to the water intake of a pump. Further, the water supply port of the pump is connected to the other main pipe, and the outlet (injection port) of the sterilizer is connected to a hose for watering or a sprinkler for watering. The sterilizer of the present invention can be made compact and lightweight by using a material such as PVC, and can be loaded and moved on a car or the like. Therefore, it can be installed at a desired place near the water inlet or the inlet, and long piping is not required.

[0005] By using the sterilizer of the present invention, even if the water used to irrigate ginger and ginger contains rhizome rot bacteria and the like, it can be instantly sterilized and used. In addition, by connecting to a sprinkler in an orchard such as a tangerine, it is possible to prevent diseases caused by water spray. Further, by loading the vehicle with a water tank, it can be used for sterilization of turf diseases caused by water in a golf course or the like. The water used for such irrigation or watering may be any concentration at which the pathogenic bacteria are killed, and the effective chlorine concentration is usually 5 to 50 pp.
m, preferably 10-20 ppm. Therefore, the concentration at the inlet of the sterilizer may be this concentration,
It can be managed with crawl test paper. For the purpose of simplifying this management, a water sampling port may be provided at an appropriate place before the injection port. The ratio between the available chlorine water to be injected from the medicine-filled cylinder just before the inlet of the pump and the water to be introduced from the water intake is adjusted so as to achieve this concentration. This ratio varies depending on the degree of contamination of water pumped from rivers, etc., but when some water is going to the drug-filled cylinder, or when available chlorine water is being injected from the drug-filled cylinder to just before the inlet of the pump, the valve is not used. The adjustment can be made easily by providing Immediately after the pump is activated, since the effective chlorine concentration is low, irrigation or watering as it is may cause illness, so connect the pipe before the inlet and after the water intake with a pipe, and circulate the water with a cock etc. Is desirable. In addition, by providing this circulation path, even after irrigation and watering are started,
The effective chlorine concentration can also be adjusted by adjusting a cock or the like and partially circulating water. There is no particular limitation on the connection between the sterilizer of the present invention and an intake port, an injection port or a pump, but it is preferable to connect a valve socket or the like to a spring hose or a blade hose via a fitting connector such as a tomlock. It is preferable because it can be connected safely and securely.

[0006]

The present invention will be described in more detail with reference to the following examples. 1) Preparation of groundwater contaminated with pathogenic bacteria Ginger rhizome rot fungus (Pythium zingib)
eris) was cultured in a Petri dish with sterile filter paper on V-8 juice agar medium at 25 ° C. for 8 days.
C. for 24 hours. Thereafter, the mixture was filtered and washed with double gauze, floated on distilled water, kept at 25 ° C. for 5 hours, and then filtered with double tissue paper to obtain a liquid containing zoospores.
This solution is added to groundwater and the concentration of zoospores is 40-50 / m
It was subjected to the test as l. 2) Irrigation method As shown in FIG. 1, a sterilizer, a pump, etc. filled with a drug are installed at a predetermined place, and a pathogen-contaminated groundwater intake and 5,
The pump suction port was connected to 6, the pump water supply port was connected to 7, and the watering inlet was connected to 8. 2. When the setting was completed, the valves 2 to 4 were completely closed and the three-way valve 1 was fully opened so as to flow in the sprinkler direction, and then the pump was started to bleed air from the pipes. 3. When the air bleeding in the pipe was completed, the three-way valve (1) was switched to circulate to the pump side, the valve (3) was fully opened, and groundwater was poured into the sterilizer. 4. When the sterilizer was full of the drug solution, the valve 2 was slightly opened to take out the sample water from the sample port 4 and adjust the chlorine concentration of the treated water. (The valve 2 is opened and closed to adjust the chlorine concentration to about 10 ppm). 5. When the adjustment was completed, one three-way valve was fully opened in the direction of the sprinkler, and water was sprayed at a rate of 20 liters / m ^{2 from} an open field ginger (area: 2.0 × 2.8 m 5.6 m ² ). Pot (diameter 26cm x height 40cm) as control
The plant ginger (six pots) was directly treated with 1 liter per pot of the groundwater contaminated with the pathogenic bacterium as it was without treatment, and used as a non-treated area. The chlorine concentration was measured using a DPD method free residual chlorine analyzer manufactured by Nippon Soda Co., Ltd.

The results are shown in Table 1. Table 1 １３ 13 days after watering 26 days after watering ──────区 Investigation (%) Investigation (%) Investigation (%) Investigation Infection (%) Investigation ) Number of stalks Number of stalks Number of stalks ─ Treatment area 200--200--──────────────────────────────────── No treatment 12 16.7 17 11.8 12 83.3 22 68.2 ────────────────────────────────────

[0008]

By using the sterilizer of the present invention,
Even if water for irrigation or watering contains pathogens such as rhizome rot pathogens, it can be sterilized instantaneously, so that it can be used with confidence even in river water. In addition, the sterilizer of the present invention can be designed compactly and can be reduced in weight, can be easily moved by car, etc., and can be installed in a convenient place. Alternatively, it can be used for watering turf such as a golf course.

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of the sterilizer of the present invention.

FIG. 2 is a schematic view of a conventional stationary type sterilizer using an aqueous solution of sodium hypochlorite.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Three-way valve 2,3 Drug concentration control valve 4 Sample removal valve 5,6,7,8 Valve socket 9 Groundwater 10 Pump 11 Loading bed 12 Drug filling cylinder

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location A01G 25/00 601 A01G 25/00 601Z C02F 1/76 C02F 1/76 A

Claims (3)

[Claims] 1. Introducing water taken in from an intake port into a water intake port of a pump, and introducing a part of water discharged from a water supply port of the pump into a filling cylinder filled with a chlorine-based chemical, whereby the chemical is dissolved. A sterilizer for irrigation water or water sprinkling, characterized by injecting available chlorine water into a main pipe in front of a water inlet of a pump. 2. An inlet for introducing a part of water drained from a water inlet of a pump into a filling cylinder and an inlet for irrigation or watering, and an inlet of the pump and available chlorine water for sucking available chlorine water. 2. The sterilizer according to claim 1, wherein a pipe is connected to a main pipe before the main pipe, and water is circulated by a cock. 3. The chlorine concentration at the outlet (inlet) of the sterilizer is 5
The sterilizer according to claim 1 or 2, wherein the amount of available chlorine water can be adjusted to be about 50 ppm.