Treatment of sanguaza from Ancon market using air micro-nanobubbles at laboratory scale

Resumen El propósito de la presente investigación es reducir las concentraciones de los parámetros físicos y químicos de las aguas de Sanguaza, provenientes de los puestos de pescado que se encuentran en el mercado de Ancón; tomándose dos puntos de muestreo, Se hallaron parámetros físicos (Turbidez y Temperatura) y Parámetros químicos (pH., DQO y DBO5); se realizaron 5 repeticiones, con diferentes concentraciones de muestras, siendo la más resaltante la Repetición N° 4, donde se obtuvieron porcentajes de eficiencia a los 60 minutos de la turbidez promedio de 79.61%, de DBO5 en un 69.68% y de DQO en 69.24%. También se obtuvo un p.H. neutro trabajando con una temperatura ambiente de 20.15 °C. Concluyendo así, que las micronanoburbujas de aire logran reducir de una manera eficaz las concentraciones de los parámetros de las aguas de sanguaza.


Introduction
Water is considered as a finite resource, essential for life, the ecological balance, but at the same time it is vulnerable and scarce.Besides its importance lies because it is necessary for the development of our activities.The city of Ancón, located north of Lima, has a landing on the pier of the same resort.In this place every day you fish and it is taken to different points of the capital.It also supplies the market in the area from very early hours of the day.In this place the merchants wash and eviscerate the captured marine species and when they join with the water, the sanguaza is formed.This aqueous liquid is thrown into the laundry room of the sales station, passing through pipes without any previous treatment and turning into domestic wastewater.
The micro-nanobubbles generation technology in water is applied in: sea water, water bodies, groundwater, domestic wastewater and industrial wastewater (Valverde, 2017).The best treatment reduction Efficiency of BOD5 in river's water was applying ozone micronanobubbles (Salguero and Valverde, 2017).
It is observed that removal efficiency of Amoxicillin using air micro-nanobubbles was obtained for COD in water with 0.5 mg amoxicillin/L achieved 76.9% at 45 minutes and for organic matter in water with 0.5 mg amoxicillin/L achieved 65.8% at 45 minutes (Mendez and Valverde, 2017).

Materials and Methods
The design of the research was experimental and the type of study applied.

Water collection
The fish sanguaza were collected from two stalls in the Ancón market, Lima.A total of 20 liters of water was taken from Sanguaza.

Analysis of Laboratory Samples
The physical parameters (turbidity and temperature) and the chemical parameters (Biochemical Oxygen Demand, Chemical Oxygen Demand and Hydrogen Potential) of the sanguaza waters were analyzed.To measure the air MNBs treatment's efficiency on Turbidity (NTU) was used the equation 1: To measure the air MNBs treatment's efficiency on BOD5 was used the equation 2: To measure the air MNBs treatment's efficiency on COD was used the equation 3:

Results
With the experiments carried out, concentrations by samples were found in the physical and chemical parameters.With this, the Tables were produced with results for each parameter.Of the five repetitions of the data obtained from the Turbidity, the average of the turbidity was obtained.At minute 60 of sample 1, repetition 3 has 45 NTU.At minute 60 of sample 2, repetition 4 has 32 NTU.The average sample of the turbidity in the zero minute was 399.8 NTU while in the 60th minute was 81.5 NTU.Of the five repetitions of the data obtained from the pH, the average pH was obtained.In sample 1 at 60 minutes, repetition 2 has the lowest pH of 6.63.In sample 2 at 60 minutes, repetition 5 has the lowest pH of 6.79.The average pH sample in the zero minute was 6.56 while in the 60th minute it was 7.11.Of the five repetitions of the data obtained from the BOD5, the BOD5 average was obtained.In sample 1 at 60 minutes, repetitions 2 and 3 have the lowest BOD5 of 120 mg/L.In sample 2 at 60 minutes, repetition 2 has the lowest BOD5 of 120 mg/L.The average BOD5 sample in the zero minute was 442 mg/L while in the 60 minute it was 134 mg/L.

Figure 1 .
Figure 1.Collection of blood for treatment

Figure 2 .
Figure 2. Flow chart of air MNBs treatment

Figure 6 .
Figure 6.Average Turbidity vs. time of treatment by air MNBs

Figure 7 .
Figure 7. Average pH vs. time of treatment by air MNBs

Figure 8 .
Figure 8.Average BOD5 vs. time of treatment by air MNBs

Table 1 .
Physical parameters Results of the temperature in the samples with different treatment times

Table 2 .
Turbidity results in the samples with different treatment times

Table 3 .
pH results in samples with different treatment times

Table 4 .
BOD5 results in samples with different treatment times

Table 5 .
DOC results in samples with different treatment timesOf the five repetitions of the data obtained from the DOC, the COD average was obtained.In sample 1 at 60 minutes, repetition 4 has the lowest COD of 157 mg/L.In sample 2 at 60 minutes, repetition 1 has the lowest COD of 140.8 mg/L.Figure 9. Average COD vs. time of treatment by air MNBs