A Brief Review on Environmental Application of Boron Doped Diamond Electrodes as a New Way for Electrochemical Incineration of Synthetic Dyes

Table 2

Initial and final values of the most important environmental parameters of electrochemically treated wastewater under optimal conditions [48].

Environmental parameter	Initial wastewater	Electrochemically
		treated wastewater
		Pt/Ti	Nb/D
pH	9	8	8
% Dye removal (436 nm)	—	67.3	81.2
% Dye removal (526 nm)	—	82.4	89.1
% Dye removal (620 nm)	—	80.3	89.5
Chlorides (mg/L)	224	174	112
Hypochlorites (mg/L)	—	0.2	82.4
BOD5 (mg/L)	149	25	75
COD (mg/L)	150	70	10
COD/BOD5	1	2.8	0.13
TOC (mg/L)	164	100	78
Temperature (°C)	25	28	40.5

Time of treatment: 30 min.