Sludge testing project

Sludge is produced in large quantities every day, and controlling the sludge concentration in activated sludge is one of the key factors in treating waste and wastewater. Therefore, it is necessary to detect it. What are the specific methods for detecting sludge concentration and what are the items for sludge concentration detection?

Sludge testing projectWhat is it

PH value, TS (dry matter content), VS (volatile matter content), VFA (fatty acids), TCD (methane content), TP (total phosphorus), TN (total nitrogen), ammonia nitrogen, available phosphorus sludge moisture content, total organic matter, mixed sludge concentration, total alkalinity, cadmium, mercury, lead, chromium, arsenic, nickel, zinc, copper, boron, mineral oil, phenol, total phosphorus, total potassium, total bacterial count, coliform bacteria, roundworm egg mortality rate, polycyclic aromatic hydrocarbons

What are the regulations for sludge testing indicators

1. Microorganisms: The types and quantities of microorganisms in sludge will show significant changes after digestion and composting treatment, especially before greening, agriculture, and other treatments, which require detection of pathogenic microorganisms.

2. Volatile substances and ash content: Volatile substances represent the amount of organic impurities contained in sludge, while ash content represents the amount of inorganic impurities contained in sludge.

3. Toxic substances: In order to avoid environmental impact, it is necessary to detect toxic substances such as mercury and lead in sludge and its products.

4. Moisture content and solid content: Sludge with high moisture content has low solid content, while sludge with low moisture content has high solid content. The remaining sludge undergoes concentration, digestion, and dewatering treatment, and the moisture content of the dewatered sludge will significantly change. Changes in moisture or solid content can reflect the effectiveness of the concentration, digestion, dewatering, and other treatment processes.

Sludge testing samples

Activated sludge, domestic sewage sludge, industrial wastewater sludge, water supply sludge, humic sludge, chemical sludge, sedimentation sludge, anaerobic sludge, printing and dyeing sludge, etc

Sludge testing projectFecal coliforms, Salmonella, Shigella, organic matter content, sludge concentration in the mixture PH、 Zinc and its compounds, copper and its compounds, lead and its compounds, nickel and its compounds, chromium and its compounds, cadmium and its compounds, arsenic and its compounds, total nitrogen, total phosphorus, total potassium, impurities, oily sludge, petroleum content, moisture content, total mercury, fatty acids, total alkalinity, impurities, phenols, etc.