Septian Suryo, S.Si., Apt. • Posted by Puffer

Published June 26, 2020

BaNOz/Air, Water, and Surface Sterilizer device

Safe and portable air, water, and Surface sterilization using ozonation and ultraviolet for effectiveness in the virus inactivation process.

IntermediateShowcase (no instructions)662

BaNOz/Air, Water, and Surface Sterilizer device

Things used in this project

Hardware components

Arduino Mega 2560

MQ131 Sensor Ozon

Digital Panel Meter, DC Voltage

DFRobot Gravity: Digital 5A Relay Module

DHT11 Temperature & Humidity Sensor (4 pins)

Power Supply Switching 12V 3A

Flow Sensor 3/8 inch

Male/Female Jumper Wires

Male/Male Jumper Wires

Espressif Wemos D1 Mini

HC-06 Bluetooth Module

Resistor 10k ohm

Hi Blower P130

Ozone Generator 3g/3000mg/hr

ultraviolet 1 Gpm

Air Pressure Gauge

Switch LED Stainless Button ON/OFF

Switch Actuator, Selector Switches

IRF840 Mosfet

Software apps and online services

Arduino IDE

MIT App Inventor 2

Google Firebase

Hand tools and fabrication machines

Soldering iron (generic)

Solder Wire, Lead Free

Story

INTRODUCTION

Since the end of 2019, the corona virus that began to plague in the city of Wuhan - China until now has caused people to panic and cause serious chaos in various parts of the world. The corona virus pandemic not only affects aspects of human health but also impacts on the economic, social, environmental and cultural aspects of society. In addition to a significant increase in deaths, the corona virus pandemic also resulted in an increase in the cost of medical devices (personal protective equipment / PPE) and even the scarcity that caused public panic. Various efforts have been made to overcome the spread of the corona virus, ranging from keeping a distance from others, working from home, doing a clean and healthy lifestyle by using antiseptic / disinfectant ingredients and taking a multivitamin.

One of the communities that we find most often to prevent the spread of the corona virus is by spraying disinfecting liquid in various places even to the human body. We must pay attention to this phenomenon, because disinfectants can kill bacteria / viruses, disinfectants also have an adverse effect on human health. In addition, the price of disinfecting materials has increased abnormally on the market, resulting in scarcity in various places. In addition to high prices and scarcity in the market, disinfectants also have some disadvantages such as safety index for humans which can cause other diseases for humans such as cancer (Chlorine), inflammation / irritation / allergic reactions (alcohol, benzalkonium, etc.). Many people also complain that after spraying disinfectants, work spaces become uncomfortable and wet, so the aesthetic aspects of their use must be considered. WHO (World Health Organization) and the Ministry of Health in various country have banned the use of disinfectants in humans.

OFFERED SOLUTION

One method of disinfecting that can be used to overcome the weaknesses of liquid disinfectant is to use the air ozonation method. Ozone (O3) is a natural material found in nature, especially in the Earth's atmosphere, namely in the troposphere and also in the stratosphere. Ozone is also widely used for the process of water and liquid sterilization / beverage products. Ozone is very effective in deactivating and sterilizing bacteria / viruses. There are many studies that prove the effectiveness of ozone in the sterilization process. One scientific journal is J Environ Health. 2008 June; 70 (10): 56-62. "Inactivation of surface viruses by ozone gas" has published the effectiveness of ozone in the process of inactivation of viruses. Ozone also activates the immune system and is used in several other therapies.

The Benefits Of Ozone

Workflow Process Device

We try to make ozone sterilization more effective and efficient in the process of deactivating the virus by using a dual sterilization system that is equipped with an ultraviolet tube and ionizer that makes the ozone function effectively. We also use "hi speed" blowers to speed up the air sterilization process. Ozone device currently only use conventional fans as vacuum cleaners and gas blowers so that the air sterilization process is very slow and inefficient for surface sterilization. In addition, our innovations are equipped with ozone, temperature, humidity and flow meter sensors so that we can measure the level of ozone produced and monitor air quality and volume of sterilized air. This sensor will be connected to a smart phone using the IoT (Internet of Things) system so users can monitor the performance of the device directly.

DESCRIPTION OF INNOVATION

The advantages of our innovation compared to ozone device in the market are:

The whole oxidation system occurs in ozone tubes and ultraviolet tubes so that the effectiveness and efficiency of the air sterilization process is far better when compared to ozone technology that uses ceramic plates and ordinary ultraviolet lamps. The conventional method that only relies on an ordinary fan will create an irregular air scattering effect so that the air is not completely sterilized.
Our device does not use a conventional air suction fan but uses a "Hi Speed" blower which sucks up and pushes air faster so that the room sterilization process will be far more effective and efficient.

Inside of Device

Application IoT & Bluetooth Connection

Our device is equipped with sensors to measure air quality ranging from temperature, humidity, air volume and ozone levels produced and has been connected to the IoT (Internet of Things) system. This will be very useful for users to monitor air quality and ensure the works properly. Many ozone devices are not equipped with ozone level gauges so we do not know whether they actually produce ozone in accordance with the required levels or not. If the level of ozone produced is less than the determined concentration, the ability to sterilize the air is reduced even bacteria / viruses will not die. In addition, our equipment can be upgraded (up grade) to detect air pollution such as carbon monoxide and so on, so that it can be used by the government to monitor real time air quality in various locations.
Our device is specially designed so that it not only sterilizes air in a room, but can also be used as a disinfecting surface for objects and water by simply adding sticks to the air sprayer so that we can disinfect various types of objects that have a large potential for contamination such as elevator buttons, chairs table and so on. This can not be done by ozone devices that only use conventional fans because the air produced is ordinary air scattering and does not have enough pressure and is concentrated at one point.
With the advantages of this device, our innovation is not only needed during the corona virus pandemic, but will also be needed by the public and government in controlling air pollution levels and controlling other diseases related to air media. In addition, there are many studies that have proven the efficacy of complementary drugs with ozone therapy in cleaning open wounds in patients and also preserving fish and fruits so that they are more durable. Therefore, the potential for developing this tool has enormous implications and implications for the community and government, so we must implement it further.

Schematics

Code

#define Connect 7
float data1,data2,data3,data4;
unsigned long timeSend;
#include <DHT.h>
DHT dht(3, DHT11); //Pin, Jenis DHT
#include "MQ131.h"

//SENSOR DEBIT
int TURBINE;      //pengukuran SINYAL data yang bersifat incremental
int HSensor = 2; //nama alias pada pin 2
int Calc;
float totald;

void setup(){
 Serial.begin(115200);
 Serial.begin(9600);
 Serial1.begin(115200);
 Serial3.begin(115200);
 dht.begin();

   // Init the sensor
  // - Heater control on pin 2
  // - Sensor analog read on pin A0
  // - Model LOW_CONCENTRATION
  // - Load resistance RL of 1MOhms (1000000 Ohms)
  MQ131.begin(2,A0, LOW_CONCENTRATION, 1000000);

  Serial.println("Calibration in progress...");
  
  MQ131.calibrate();
  
  Serial.println("Calibration done!");
  Serial.print("R0 = ");
  Serial.print(MQ131.getR0());
  Serial.println(" Ohms");
  Serial.print("Time to heat = ");
  Serial.print(MQ131.getTimeToRead());
  Serial.println(" s");
}

void loop(){
 float kelembaban = dht.readHumidity();
 float suhu = dht.readTemperature();

//SENSOR DEBIT
TURBINE = 00; //data awal = 0
sei(); //perintah aktifnya mode interrupt
delay (1000); //nilai delay 1 detik
cli(); //perintah untuk matinya program interrupt
Calc = ((TURBINE * 60 / 7.5)/60); //Pulsa * 60 / 7.5 
totald += Calc;

 Serial.print(kelembaban);
 Serial.print("|");
 Serial.print(suhu);
 Serial.print("|");
 Serial.print(MQ131.getO3(UG_M3));
 Serial.print(" ug/m3");
 Serial.print("|");
 Serial.print(Calc, DEC);
 Serial.print(" L/min");
 Serial.print("|");
 Serial.print(totald/60);
 Serial.print(" L");

    //ke wmos
    data1 = MQ131.getO3(UG_M3),1;//Ozon
    data2 = suhu,1;//Suhu
    data3 = kelembaban, 1;//Kelembaban
    data4 = totald/60;//debit
}

#include <ESP8266WiFi.h>
#define Connect D2
String apiKey = "S1TBBLPYKO374Y25"; //API KEY
const char* ssid = "RSHS"; //nama wifi
const char* password = "rshs2019"; //password wifi
const char* server = "api.thingspeak.com";
WiFiClient client;
String data1,data2,data3,data4;
void setup() {
  pinMode(Connect,OUTPUT);
  digitalWrite(Connect,LOW);
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  digitalWrite(Connect,HIGH);
}


void loop() {
  Receive();
  digitalWrite(Connect,HIGH);
  while (WiFi.status() != WL_CONNECTED) {
    digitalWrite(Connect,LOW);
    delay(500);
    Serial.print(".");
  }
}
void Receive(){
  if(Serial.available()>0){
    String data=Serial.readString();
    split_data(data);
  }
  if(kode=="data"){
    Serial.println(data1);
    Serial.println(data2);
    Serial.println(data3);
    Serial.println(data4);
    kirim_ke_thingspeak(data1,data2,data3,data4);
    kode="";
  }
}

void split_data(String myString) {
  int Index1, Index2, Index3, Index4, Index5, Index6, Index7, Index8;
  if (myString.length() > 0) {
    Index1 = myString.indexOf('|');
    Index2 = myString.indexOf('|', Index1 + 1);
    Index3 = myString.indexOf('|', Index2 + 1);
    Index4 = myString.indexOf('|', Index3 + 1);
    Index5 = myString.indexOf('|', Index4 + 1);
    Index6 = myString.indexOf('|', Index5 + 1);

    kode = myString.substring(Index1 + 1, Index2);
    data1 = myString.substring(Index2 + 1, Index3);
    data2 = myString.substring(Index3 + 1, Index4);
    data3 = myString.substring(Index4 + 1, Index5);
    data4 = myString.substring(Index5 + 1, Index6);
  }
}

void kirim_ke_thingspeak(String val1,String val2,String val3,String val4,String val5,String val6){
  if (client.connect(server, 80)) {
    String postStr = apiKey;
    postStr += "&field1=";postStr += val1;
    postStr += "&field2=";postStr += val2;
    postStr += "&field3=";postStr += val3;
    postStr += "&field4=";postStr += val4;
    postStr += "&field5=";postStr += val5;
    postStr += "&field6=";postStr += val6;
    postStr += "\r\n\r\n\r\n\r\n\r\n\r\n";
    client.print("POST /update HTTP/1.1\n");
    client.print("Host: api.thingspeak.com\n");
    client.print("Connection: close\n");
    client.print("X-THINGSPEAKAPIKEY: " + apiKey + "\n");
    client.print("Content-Type: application/x-www-form-urlencoded\n");
    client.print("Content-Length: ");
    client.print(postStr.length());
    client.print("\n\n");
    client.print(postStr);
  }
  client.stop();
}

Credits

Septian Suryo, S.Si., Apt.

Posted by

Puffer

BaNOz/Air, Water, and Surface Sterilizer device