Application of nitrifying bacteria in textile dyeing wastewater treatment

Application of nitrifying bacteria in textile dyeing wastewater treatment

Category： Foodstuff Wastewater Treatment
Product State: Solid powder
Storage Method: Store in a dry and cool place, do not expose to the sun or damp
Safety:Non toxic and harmless
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Product Description:

1. Project Overview
The sewage of this project is mainly from the wastewater discharged by printing and dyeing enterprises in the park, with a daily treatment capacity of 2000m3/d. The main biochemical process adopts A2/O treatment process. Due to the improvement of discharge requirements, effluent ammonia nitrogen is required to be less than 15mg/L in order to ensure stable effluent standards. After on-site addition of nitrifying bacteria of our company, the nitrification effect of biochemical tank is significantly improved, and the effluent is stable and up to standard.

2. Project analysis
2.1 Water Quality Characteristics
Textile printing and dyeing wastewater sewage mainly contains textile fibers on the dirt, grease, salt and processing process of additional slurry, dyes, surfactants, additives, acid and alkali, high concentration of organic matter, complex composition, color deep and variable, pH change, water quality change.

2.2 Inlet water quality
According to the actual monitoring and statistics of wastewater in the plant, the inlet water quality is as follows: COD:2500mg/ L, BOD5:500mg/ L, NH3-N: 100mg/ L, SS: 1000mg/ L, and chroma :1000.

2.3 Process Flow
The process flow of this project is: "regulating tank + pretreatment + hydrolytic acidification +A2/O+ secondary sedimentation tank + decolorization" process.

3. Project debugging
3.1 Debugging Process

2-3 feeding points were selected around the aerobic pool, and nitrifying bacteria were added to make their uniform distribution, controlling dissolved oxygen, PH, temperature and other indicators to ensure the suitable growth environment for nitrifying bacteria. Samples were taken before and after every day to detect the effluent ammonia nitrogen index. After one week of feeding, the effluent ammonia nitrogen remained stable below 10mg/ L, meeting the discharge requirements.

Kashion-Product Introduction

Product State	Solid powder	Application	Slaughter wastewater, industrial wastewater, pharmaceutical wastewater, sanitary wastewater, river regulation, waste osmotic fluid.
Storage Method	Store in a dry and cool place, do not expose to the sun or damp	Shelf Life	Sealed for 2 years and unsealed for 2 months.
Safety	Non toxic and harmless	Main Components	Nitrobacteria、alcaligenes、zymin、microelement, etc.
PH Value	Average range:5.5～9.5	Temperature	Take effect between 8℃～60℃
Dissolved Oxygen	AerationTank≥2mg/L
Salinity	Tolerates 6% salinity	Anti-toxicity	Effectively resist chemical toxic substances, including chloride, cyanide and heavy metals. (Note: When the contaminated area contains fungicides, their effects on microorganisms should be studied in advance.)