JP3115339B2 - Septic tank remote management method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for centrally and remotely managing a plurality of septic tanks distributed in various places using a computer and a telephone line.

[0002]

2. Description of the Related Art Conventionally, a plurality of septic tanks distributed and installed are managed by a worker who goes to a place where each septic tank is installed, performs sampling or a part of the on-site analysis, and adjusts a flow rate based on the data. Aeration control, disinfectant replenishment, blower,
He returned home after performing work such as maintenance and inspection of various devices such as pumps, and performed centralized management. Therefore, many maintenance and inspection workers were required. In addition, there are many problems, such as variations in data among analysts and a need for skill in data analysis.

[0003]

SUMMARY OF THE INVENTION The present invention significantly reduces the maintenance and management that is frequently performed in the field as described above, and achieves stable and normal operation through constant management and prompt measures. It was developed to enable driving.

[0004]

That is, a terminal device provided with an output from various sensors for sensing aeration tank information or contact aeration tank information, discharge water information or flow rate information as a purification treatment condition on each of the purification tank sides. In, the terminal device
Te, full water, the alarm output of the earth leakage and overload provided, these with each terminal device, and to manage contact a central management device on the telephone line. Here, the sensor output is mainly composed of at least DO of the aeration tank or contact aeration tank, pH of the discharged water, and residual chlorine concentration.

[0005]

The output from various sensors is automatically stored in the terminal, and necessary information is automatically transmitted to the management device at predetermined time intervals. In case of abnormality, the alarm output device operates. If there is no alarm, periodically, for example, once a month
It is only necessary to check the degree and the sensor. If normal,
No need for that. In some cases, it may be about once every six months or a year, and a plurality of septic tanks can be remotely managed centrally.

[0006]

FIG. 1 is a block diagram showing the overall configuration of a system used in the method of the present invention. In the present invention, in order to centrally manage a plurality of septic tanks, details are shown in FIG. The center computer can be connected to a telephone line via a modem, receives external data, and sends output data as needed. A host computer is also used as necessary for the computer in the central management device 1.

On the other hand, each of the septic tanks is provided with various sensors for sensing aeration tank information or contact aeration tank information, discharged water information or flow rate information, and these data are stored in A / A as shown in FIG. D-converted and transmitted from the CPU of the terminal device 2 to the central management unit 1 shown in FIG.
Sent to the center computer. As sensor output, water temperature of aeration tank or contact aeration tank, pH, MLSS, D
O, nitrous acid concentration, pH of effluent, SS, COD, residual chlorine, ammonia ion concentration, and flow rate include inflow, sludge return, aeration, and the like.

As shown in FIG. 3, the CPU of the terminal device 2 on each septic tank is provided with alarm output circuits such as a full-water alarm, a short-circuit alarm, an overload alarm, and a power failure alarm. The full water warning is sent to the center in the event of an abnormality, monitoring the full water condition in each of the sewage tank, adjustment tank, relay tank and discharge tank. The electric leakage alarm and the overload alarm relate to the pump and the blower, and the electric power failure alarm is made comprehensively.

FIG. 4 shows a control system diagram in the embodiment. The sewage is led to the sewage tank 5 through the screen unit 4, where it is temporarily stored. If necessary, pump up the water and transfer it from the sewage tank 5 to the adjustment tank 6. Air is bubbled into the regulating tank 6 by the regulating blower 3a of the blower chamber 3 to prevent sludge from accumulating on the bottom. The flow rate of the sludge water is sensed by the inflow rate sensor 8 and adjusted to a constant amount, and then transferred to the aeration tank 7.

The aeration tank is also provided with an aeration sensor 9 for supplying air from the aeration blower 3b in the blower chamber 3 to keep the air aerobic. The DO sensor 10 and the MLSS sensor 11 control the conditions. The aerated treated water and activated sludge are transferred to the sedimentation tank 12, where they are separated and separated by the air lift blower 3c.
The activated sludge is returned to the aeration tank 7 again by the air lift pump 14 operated in the step (1). This amount is checked by the sludge return amount sensor 13.

As described above, the septic tank has the blower chamber 3 for sending air for aeration.
Aeration is performed. This aeration amount is converted into data as a flow rate. The measurement is an orifice flow meter with a ring. The aeration tank 7 has the DO sensor 10 and the MLSS sensor 11
In addition to the above, a thermometer of a resistance thermometer, a pH sensor of a glass electrode method digital display, a turbidity meter of a double scattered light comparison system, and the like can be provided. The discharged water after passing through the disinfection tank 15 from the settling tank 12 is supplied to a pH sensor 17 in a discharge tank 16, a surface scattering SS sensor 18 as a turbidity meter, and a free chlorine sensor 19 for measuring residual chlorine concentration. And so on.

In the present invention, the output from various sensors for sensing aeration tank information, effluent water information or flow rate information, and alarm outputs such as full water, short circuit, overload, and the like as the purification processing conditions are transmitted from the terminal device 2 to the central unit. It is communicated to the management device 1 via a telephone line, and is managed by this.

[0013]

According to the present invention, the following effects can be obtained. Since water quality management data measured via a high-precision sensor can be collected remotely, on-site inspections and measurement associated with measurement can be reduced (ie, terminal operation can be reduced in labor). Because real-time information can be measured at any time,
The water quality status of the septic tank can always be grasped through the system
(Enhancement of water quality management). When an error occurs in terminal equipment, etc.
Prompt response can be taken to clearly report the location
(Enhancement of alarm monitoring). Enhancing water quality management and alarm monitoring will help improve the reliability of septic tank management.

[Brief description of the drawings]

FIG. 1 is an overall configuration block diagram of a system used in a method of the present invention.

FIG. 2 is a block diagram of a central management unit of the system used in the method of the present invention.

FIG. 3 is a block diagram of a terminal device of a system used in the method of the present invention.

FIG. 4 is a control system diagram in the method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Central management apparatus 2 Terminal device 3 Blower room 4 Screen unit 5 Sewage tank 6 Adjustment tank 7 Aeration tank 8 Inflow sensor 9 Aeration sensor 10 DO sensor 11 MLSS sensor 12 Sedimentation tank 13 Sludge return sensor 14 Air lift pump 15 Disinfection tank 16 Discharge tank 17 pH sensor 18 SS sensor 19 Free chlorine sensor

Claims (1)

(57) [Claims] 1. A terminal device provided with an output from various sensors for sensing aeration tank information or contact aeration tank information, effluent water information or flow rate information as purification treatment conditions on each purification tank side.
Characterized Oite for the terminal device, full water, the <br/> alarm output leakage and overload provided, these with each terminal device, to manage contact a central management device in the telephone line Remote control method of septic tank.