Septic Tank Sludges: Accumulation Rate and Biochemical Characteristics

1993 ◽  
Vol 28 (10) ◽  
pp. 57-64 ◽  
Author(s):  
H. Philip ◽  
S. Maunoir ◽  
A. Rambaud ◽  
L. S. Philippi
Keyword(s):  
Biochemical Study ◽  
Accumulation Rate ◽  
Hydrolytic Enzymes ◽  
Septic Tank ◽  
Chemical Parameters ◽  
System Failures ◽  
Biochemical Characteristics ◽  
Insoluble Particles ◽  
Physico Chemical ◽  
Sanitation Systems

A three year field and investigative study carried out on 33 individual sanitation systems showed that the frequency of septic tank emptying could be at least 5 years, corresponding to a sludge accumulation rate of 0.21/user.day. This value should be included in the calculation of septic tank sizing. Other data showed within a septic tank the methanogenesis is only effective after 2 years of operation. Thereby a septic tank should not be desludged before this period of time. At last, among all the physico-chemical parameters monitored to study the sludge quality, the best indicators of system failures were both the solids (TS and VS) and soluble matter (COD and some VFA). Then, biochemical study of septic tank sludge showed that the main hydrolytic enzymes (cellulase, phosphatase, protease, lipase and urease) are present in septic tank sludges and linked to the insoluble particles. Their solubilization with different solvents (buffers, surfactants…) showed each enzyme was linked in a different way.

scholarly journals Vermiconversion of paper industry waste for recycling the nutrients usig earthworm eudrilus eugeniae kingberg on growth of cluster bean (cymopsis tetragonoloba)

2016 ◽  
Vol 4 (2) ◽  
pp. 88
Author(s):  
P. Sivakumar ◽  
R. Chithra
Keyword(s):  
Growth Parameters ◽  
Paper Industry ◽  
Dry Weight ◽  
High Yield ◽  
Eudrilus Eugeniae ◽  
Chemical Parameters ◽  
Biochemical Characteristics ◽  
Cluster Bean ◽  
Industry Waste ◽  
Physico Chemical

Objective: To preparation of vermicompost from paper industry waste for recycling the nutrients using earthworm Eudrilus eugeniae kingberg. To analyze the physico chemical parameters of vermicompost, vermiwash and vermicompost extract, enumeration of microorganism from vermicompost, growth parameters and biochemical characteristics of Cluster bean (Cymopsis tetragonoloba) were studied.Methods: The paper industry wastes washed for two times with preparing the predecompost and it kept in 30 days. For preparing the vermicompost, the predecomposition was directly mixed with cowdung in the ratio of 1:2 on dry weight basis in same tank. Seventy number of healthy, clitellate Eudrilus eugeniae kingberg were introduced in the same tank. After 45 days the trial tank compost were sieved and collected for paper industry waste vermicompost.Results: The physico chemical parameters of vermicompost vermiwash and vermicompost extract were studied, the growth parameters and biochemical characteristics were higher in treatments 5 and 6 of Cluster bean were using various concentration of vermicompost, vermiwash and vermicompost extract.Conclusion: Present study was concluded that the Eudrilus eugeniae kingberg is more efficient in bioconversion of paper industry waste vermicompost, vermiwash and vermicompost extract were using various concentration of pot culture study of brinjal was higher growth and high yield and vermicompost act as an excellent biofertilizer of crop plants.

scholarly journals Effect of Depth and Distance of the Borehole from the Septic Tank on the Physico-Chemical Quality of Water

2017 ◽  
Vol 7 (1) ◽  
pp. 41
Author(s):  
Chove Lucy Mlipano ◽  
Mongi Richard ◽  
Chenge Lawrence
Keyword(s):  
Oxygen Demand ◽  
Septic Tank ◽  
Total Hardness ◽  
Chemical Characteristics ◽  
Chemical Parameters ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Borehole Water ◽  
Deep Boreholes

A study to examine the effect of depth and distance of the boreholes from the septic tank on physico-chemical parameters of the borehole water consumed in Dar Es Salaam, Tanzania was conducted. Samples were collected from 48 boreholes in Ilala, Kinondoni and Temeke districts and subjected to pH, B.O.D (Biological Oxygen Demand), total hardness, copper and lead analyses in relation to safety and quality levels set by WHO and TBS. Analysis by R-statistics indicated that pH and B.O.D significantly (p<0.05) decreased as the depth of borehole increased, whereas total hardness was significantly (p<0.05) higher in very deep boreholes than the other heights. Total hardness and pH were not significantly (p>0.05) affected by distance between septic tank and borehole and the B.O.D levels were significantly higher in the borehole water situated near the septic tank than those which were far. Based on the physico-chemical characteristics of water, 25% of the samples did not comply with WHO and TBS specification limits while 75% complied, most of which had shallow depths and were situated near the septic tank. It may thus be concluded that both the distance and the depth between septic tank and borehole influenced physico-chemical characteristics of water.

Seasonal Variation of Physico-Chemical Parameters in Kedilam River, Tamil Nadu, India

2012 ◽  
Vol 2 (10) ◽  
pp. 1-3
Author(s):  
Gyaneswar Bhuyan ◽  
◽  
Dr. R. Anandhan Dr. R. Anandhan ◽  
V. kavitha V. kavitha
Keyword(s):  
Seasonal Variation ◽  
Tamil Nadu ◽  
Chemical Parameters ◽  
Physico Chemical

Abundance of Noctiluca scintillans Macartney on the alteration of physico-chemical parameters at Minnie Bay, Port Blair, Andaman & Nicobar Islands, India

2007 ◽  
Vol 9 (3) ◽  
pp. 236-246
Author(s):  
P. D. Magesh ◽  
J. Santanakumar ◽  
P. Venkateshwaran ◽  
A. K. Abdul Nazar ◽  
R. Venkatesan ◽  
...  
Keyword(s):  
Chemical Parameters ◽  
Noctiluca Scintillans ◽  
Physico Chemical ◽  
Nicobar Islands

INFLUENCE OF PHYSICO- CHEMICAL PARAMETERS ON THE JOINT GROWTH OF MICROORGANISMS USED IN THE PRODUCTION OF BIOFUELS

2018 ◽  
Vol 8 (5) ◽  
pp. 48-50
Author(s):  
N.V. Lakina ◽  
◽  
A.I. Golovko ◽  
V.Yu. Doluda ◽  
V.G. Matveeva ◽  
...  
Keyword(s):  
Chemical Parameters ◽  
Physico Chemical

Controlled and uncontrolled physicochemical quality indicators of 0.9 % sodium chloride of various manufacturers

2020 ◽  
pp. 6-11
Author(s):  
Anton Kasatkin ◽  
Anna Nigmatullina ◽  
Mikhail Kopytov
Keyword(s):  
Sodium Chloride ◽  
Quality Indicators ◽  
Clinical Studies ◽  
Laboratory Tests ◽  
Ph Value ◽  
Chemical Parameters ◽  
Pharmacokinetics And Pharmacodynamics ◽  
Physicochemical Quality ◽  
Physico Chemical

The article presents the results of studies of osmolality and pH of 0,9 % sodium chloride of various manufacturers. To obtain data on the pH value, the data used in the passports are used, and the indicators of its osmolality are de- termined using laboratory tests. 0,9 % sodium chloride from different manufacturers has different pH and osmolality. Knowing the actual values of physico-chemical parameters can increase the accuracy of the results of future clinical studies, which compare the pharmacokinetics and pharmacodynamics of modern plasma-substituting solutions and a solution of 0,9 % sodium chloride.

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